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51090358712 = 2319232635389
BaseRepresentation
bin101111100101001110…
…010000000110111000
311212212120112010120212
4233211032100012320
51314113112434322
635245351410252
73456031612061
oct574516200670
9155776463525
1051090358712
111a7381a2758
129a9a083988
134a829261b3
14268947d568
1514e04740e2
hexbe53901b8

51090358712 has 48 divisors (see below), whose sum is σ = 105411201000. Its totient is φ = 23148455616.

The previous prime is 51090358691. The next prime is 51090358717. The reversal of 51090358712 is 21785309015.

It is a super-2 number, since 2×510903587122 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51090358712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51090358717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237287 + ... + 398102.

Almost surely, 251090358712 is an apocalyptic number.

It is an amenable number.

51090358712 is an abundant number, since it is smaller than the sum of its proper divisors (54320842288).

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

51090358712 is a wasteful number, since it uses less digits than its factorization.

51090358712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635460 (or 635433 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 51090358712 in words is "fifty-one billion, ninety million, three hundred fifty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 8 19 23 38 46 76 92 152 184 437 529 874 1058 1748 2116 3496 4232 10051 20102 40204 80408 635389 1270778 2541556 5083112 12072391 14613947 24144782 29227894 48289564 58455788 96579128 116911576 277664993 336120781 555329986 672241562 1110659972 1344483124 2221319944 2688966248 6386294839 12772589678 25545179356 51090358712