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131091683575 = 5237141720739
BaseRepresentation
bin111101000010110101…
…1000101100011110111
3110112101000010111221211
41322011223011203313
54121433432333300
6140120033422251
712320400632206
oct1720553054367
9415330114854
10131091683575
1150660924166
12214a640a987
13c492103048
1464b848123d
153623b054ba
hex1e85ac58f7

131091683575 has 12 divisors (see below), whose sum is σ = 166947031720. Its totient is φ = 102038931360.

The previous prime is 131091683537. The next prime is 131091683581. The reversal of 131091683575 is 575386190131.

It is a happy number.

It is not a de Polignac number, because 131091683575 - 211 = 131091681527 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70859445 + ... + 70861294.

Almost surely, 2131091683575 is an apocalyptic number.

131091683575 is a deficient number, since it is larger than the sum of its proper divisors (35855348145).

131091683575 is a wasteful number, since it uses less digits than its factorization.

131091683575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141720786 (or 141720781 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 131091683575 in words is "one hundred thirty-one billion, ninety-one million, six hundred eighty-three thousand, five hundred seventy-five".

Divisors: 1 5 25 37 185 925 141720739 708603695 3543018475 5243667343 26218336715 131091683575