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51056051060 = 2257647563657
BaseRepresentation
bin101111100011001011…
…011000001101110100
311212210011222010100002
4233203023120031310
51314030322113220
635242124210432
73455134162550
oct574313301564
9155704863302
1051056051060
111a71a89a923
129a8a699a18
134a787a3601
142684aac860
1514dc448c75
hexbe32d8374

51056051060 has 48 divisors (see below), whose sum is σ = 122724129024. Its totient is φ = 17477845248.

The previous prime is 51056051051. The next prime is 51056051063. The reversal of 51056051060 is 6015065015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056051063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191249 + ... + 372408.

It is an arithmetic number, because the mean of its divisors is an integer number (2556752688).

Almost surely, 251056051060 is an apocalyptic number.

It is an amenable number.

51056051060 is an abundant number, since it is smaller than the sum of its proper divisors (71668077964).

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

51056051060 is a wasteful number, since it uses less digits than its factorization.

51056051060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564320 (or 564318 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 51056051060 in words is "fifty-one billion, fifty-six million, fifty-one thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 647 1294 2588 3235 4529 6470 9058 12940 18116 22645 45290 90580 563657 1127314 2254628 2818285 3945599 5636570 7891198 11273140 15782396 19727995 39455990 78911980 364686079 729372158 1458744316 1823430395 2552802553 3646860790 5105605106 7293721580 10211210212 12764012765 25528025530 51056051060