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51371514042 = 2339839214913
BaseRepresentation
bin101111110101111110…
…110001100010111010
311220121011120022012020
4233311332301202322
51320202101422132
635333313455310
73466014443652
oct576576614272
9156534508166
1051371514042
111a871975932
129b58271536
134ac8c566b4
1426b4949362
151509eae52c
hexbf5fb18ba

51371514042 has 16 divisors (see below), whose sum is σ = 102746085120. Its totient is φ = 17123328512.

The previous prime is 51371514031. The next prime is 51371514071. The reversal of 51371514042 is 24041517315.

It is a junction number, because it is equal to n+sod(n) for n = 51371513994 and 51371514012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131578 + ... + 346490.

It is an arithmetic number, because the mean of its divisors is an integer number (6421630320).

Almost surely, 251371514042 is an apocalyptic number.

51371514042 is an abundant number, since it is smaller than the sum of its proper divisors (51374571078).

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

51371514042 is a wasteful number, since it uses less digits than its factorization.

51371514042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254757.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 51371514042 in words is "fifty-one billion, three hundred seventy-one million, five hundred fourteen thousand, forty-two".

Divisors: 1 2 3 6 39839 79678 119517 214913 239034 429826 644739 1289478 8561919007 17123838014 25685757021 51371514042