900 (number)
Nine hundred is the natural number following eight hundred ninety-nine and preceding nine hundred one.
| |||
| Ordinal | Nine hundred | ||
| Cardinal | 900th | ||
| Factorization | |||
| Roman numeral | CM | ||
| Binary | 1110000100 | ||
| Hexadecimal | 384 | ||
Nine hundred is also:
- The telephone area code for "premium" phone calls.
- In Greek number symbols Sampi ("Great Pi" ostensibly from the visual resemblance to the greek letter), which is signified by a convex horisontal arc with two parallel vertical lines below. Sometimes represented in a slightly tilted form.
- For the year AD, see 900.
901 = 17 × 53
902 = 2 × 11 × 41, sphenic number, also the telephone area code for Nova Scotia and Prince Edward Island
903 = 3 × 7 × 43, sphenic number, triangular number, Mertens function(903) returns 0
904 = 23 × 113 or 113x8, Mertens function(904) returns 0
905 = 5 × 181, sum of seven consecutive primes (109 + 113 + 127 + 131 + 137 + 139 + 149)
906 = 2 × 3 × 151, sphenic number, Mertens function(906) returns 0
907 prime number, also the telephone area code for Alaska
908 = 22 × 227
909 = 32 × 101
910 = 2 × 5 × 7 × 13, Mertens function(910) returns 0
911 has its own page
912 = 24 × 3 × 19, sum of four consecutive primes (223 + 227 + 229 + 233), sum of ten consecutive primes (67 + 73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109)
913 = 11 × 83, Smith number, Mertens function(913) returns 0
914 = 2 × 457
915 = 3 × 5 × 61, sphenic number, Smith number, Mertens function(915) returns 0
916 = 22 × 229, Mertens function(916) returns 0
917 = 7 × 131, sum of five consecutive primes (173 + 179 + 181 + 191 + 193)
918 = 2 × 33 × 17
919 prime number, cuban prime, palindromic prime, centered hexagonal number, Mertens function(919) returns 0
920 = 23 × 5 × 23, Mertens function(920) returns 0
921 = 3 × 307
922 = 2 × 461, Smith number
923 = 13 × 71
924 = 22 × 3 × 7 × 11, sum of a twin prime (461 + 463)
925 = 52 × 37, centered square number
926 = 2 × 463, sum of six consecutive primes (139 + 149 + 151 + 157 + 163 + 167)
927 = 32 × 103, tribonacci number
928 = 25 × 29, sum of four consecutive primes (227 + 229 + 233 + 239), sum of eight consecutive primes (101 + 103 + 107 + 109 + 113 + 127 + 131 + 137)
929 prime number, palindromic prime, sum of nine consecutive primes (83 + 89 + 97 + 101 + 103 + 107 + 109 + 113 + 127)
930 = 2 × 3 × 5 × 31, heteromecic number
931 = 72 × 19, sum of three consecutive primes (307 + 311 + 313)
932 = 22 × 233
933 = 3 × 311
934 = 2 × 467
935 = 5 × 11 × 17, sphenic number
936 = 23 × 32 × 13, pentagonal pyramidal number
937 prime number, star number
938 = 2 × 7 × 67, sphenic number
939 = 3 × 313
940 = 22 × 5 × 47
941 prime number, sum of three consecutive primes (311 + 313 + 317), sum of five consecutive primes (179 + 181 + 191 + 193 + 197)
942 = 2 × 3 × 157, sphenic number, sum of four consecutive primes (229 + 233 + 239 + 241)
943 = 23 × 41
944 = 24 × 59
945 = 33 × 5 × 7, double factorial of 9, smallest odd abundant number (divisors less than itself add up to 975)
946 = 2 × 11 × 43, sphenic number, triangular number, hexagonal number
947 prime number, sum of seven consecutive primes (113 + 127 + 131 + 137 + 139 + 149 + 151)
948 = 22 × 3 × 79
949 = 13 × 73
950 = 2 × 52 × 19
951 = 3 × 317, centered pentagonal number
952 = 23 × 7 × 17
953 prime number, Sophie Germain prime
954 = 2 × 32 × 53, sum of ten consecutive primes (73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109 + 113)
955 = 5 × 191
956 = 22 × 239
957 = 3 × 11 × 29, sphenic number
958 = 2 × 479, Smith number
959 = 7 × 137
960 = 26 × 3 × 5, sum of six consecutive primes (149 + 151 + 157 + 163 + 167 + 173)
961 = 312, sum of three consecutive primes (313 + 317 + 331), sum of five consecutive primes (181 + 191 + 193 + 197 + 199)
962 = 2 × 13 × 37, sphenic number
963 = 32 × 107, sum of the first twenty-four primes
964 = 22 × 241, sum of four consecutive primes (233 + 239 + 241 + 251)
965 = 5 × 193
966 = 2 × 3 × 7 × 23, sum of eight consecutive primes (103 + 107 + 109 + 113 + 127 + 131 + 137 + 139)
967 prime number
968 = 23 × 112
969 = 3 × 17 × 19, sphenic number, tetrahedral number
970 = 2 × 5 × 97, sphenic number
971 prime number
972 = 22 × 35
973 = 7 × 139
974 = 2 × 487
975 = 3 × 52 × 13
976 = 24 × 61
977 prime number, sum of nine consecutive primes (89 + 97 + 101 + 103 + 107 + 109 + 113 + 127 + 131)
978 = 2 × 3 × 163, sphenic number
979 = 11 × 89
980 = 22 × 5 × 72
981 = 32 × 109
982 = 2 × 491
983 prime number, Wedderburn-Etherington number
984 = 23 × 3 × 41
985 = 5 × 197, sum of three consecutive primes (317 + 331 + 337), Smith number
986 = 2 × 17 × 29, sphenic number
987 = 3 × 7 × 47
988 = 22 × 13 × 19, sum of four consecutive primes (239 + 241 + 251 + 257)
989 = 23 × 43
990 = 2 × 32 × 5 × 11, sum of six consecutive primes (151 + 157 + 163 + 167 + 173 + 179), triangular number
991 prime number, sum of five consecutive primes (191 + 193 + 197 + 199 + 211), sum of seven consecutive primes (127 + 131 + 137 + 139 + 149 + 151 + 157)
992 = 25 × 31, heteromecic number
993 = 3 × 331
994 = 2 × 7 × 71, sphenic number
995 = 5 × 199
996 = 22 × 3 × 83
997 prime number
998 = 2 × 499
999 = 33 × 37, Kaprekar number
- In some parts of the world, such as the UK and Commonwealth countries, 999 is the emergency telephone number; it is being quickly replaced, however, by the international emergency number 112.
- 999 was also the name of a significant London punk band active during the 1970s.
See also: 1000 (number)