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76550012 = 2271119103127
BaseRepresentation
bin1001001000000…
…00111101111100
312100001010212122
410210000331330
5124044100022
611332422112
71616443610
oct444007574
9170033778
1076550012
113a235180
1221777938
1312b22c86
14a249340
156ac1742
hex4900f7c

76550012 has 96 divisors (see below), whose sum is σ = 178913280. Its totient is φ = 27760320.

The previous prime is 76550011. The next prime is 76550017. The reversal of 76550012 is 21005567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76550011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602693 + ... + 602819.

It is an arithmetic number, because the mean of its divisors is an integer number (1863680).

Almost surely, 276550012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76550012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89456640).

76550012 is an abundant number, since it is smaller than the sum of its proper divisors (102363268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76550012 is a wasteful number, since it uses less digits than its factorization.

76550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 76550012 is about 8749.2863708991. The cubic root of 76550012 is about 424.6017251562.

Adding to 76550012 its reverse (21005567), we get a palindrome (97555579).

The spelling of 76550012 in words is "seventy-six million, five hundred fifty thousand, twelve".

Divisors: 1 2 4 7 11 14 19 22 28 38 44 76 77 103 127 133 154 206 209 254 266 308 412 418 508 532 721 836 889 1133 1397 1442 1463 1778 1957 2266 2413 2794 2884 2926 3556 3914 4532 4826 5588 5852 7828 7931 9652 9779 13081 13699 15862 16891 19558 21527 26162 26543 27398 31724 33782 39116 43054 52324 53086 54796 67564 86108 91567 106172 143891 150689 183134 185801 248539 287782 301378 366268 371602 497078 575564 602756 743204 994156 1007237 1739773 2014474 2733929 3479546 4028948 5467858 6959092 10935716 19137503 38275006 76550012