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51316061315 = 5101241421643
BaseRepresentation
bin101111110010101011…
…001111010010000011
311220110022020000100112
4233302223033102003
51320043402430230
635324013141535
73464442216131
oct576253172203
9156408200315
1051316061315
111a843640432
129b4178a8ab
134aba60c42c
1426ab432751
1515051a8d95
hexbf2acf483

51316061315 has 16 divisors (see below), whose sum is σ = 62447162976. Its totient is φ = 40477632000.

The previous prime is 51316061311. The next prime is 51316061333.

51316061315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51316061315 - 22 = 51316061311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51316061311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89117 + ... + 332526.

It is an arithmetic number, because the mean of its divisors is an integer number (3902947686).

Almost surely, 251316061315 is an apocalyptic number.

51316061315 is a deficient number, since it is larger than the sum of its proper divisors (11131101661).

51316061315 is a wasteful number, since it uses less digits than its factorization.

51316061315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421990.

The product of its (nonzero) digits is 8100, while the sum is 32.

It can be divided in two parts, 513160 and 61315, that added together give a palindrome (574475).

The spelling of 51316061315 in words is "fifty-one billion, three hundred sixteen million, sixty-one thousand, three hundred fifteen".

Divisors: 1 5 101 241 505 1205 24341 121705 421643 2108215 42585943 101615963 212929715 508079815 10263212263 51316061315