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131316515015 = 57101199186671
BaseRepresentation
bin111101001001100010…
…0110000000011000111
3110112221200012010201012
41322103010300003013
54122414011440030
6140154224352435
712326100650360
oct1722304600307
9415850163635
10131316515015
1150766827374
122154977571b
13c4c98728ba
1464da288b67
153638717095
hex1e931300c7

131316515015 has 32 divisors (see below), whose sum is σ = 182789222400. Its totient is φ = 88705584000.

The previous prime is 131316515009. The next prime is 131316515041. The reversal of 131316515015 is 510515613131.

It is not a de Polignac number, because 131316515015 - 24 = 131316514999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610130 + ... + 796800.

It is an arithmetic number, because the mean of its divisors is an integer number (5712163200).

Almost surely, 2131316515015 is an apocalyptic number.

131316515015 is a deficient number, since it is larger than the sum of its proper divisors (51472707385).

131316515015 is a wasteful number, since it uses less digits than its factorization.

131316515015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186983.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 131316515015 in words is "one hundred thirty-one billion, three hundred sixteen million, five hundred fifteen thousand, fifteen".

Divisors: 1 5 7 35 101 199 505 707 995 1393 3535 6965 20099 100495 140693 186671 703465 933355 1306697 6533485 18853771 37147529 94268855 131976397 185737645 260032703 659881985 1300163515 3751900429 18759502145 26263303003 131316515015