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31423593925 = 5210391209763
BaseRepresentation
bin11101010000111111…
…011111110111000101
310000002222000222010001
4131100333133313011
51003323420001200
622234044401301
72161464066313
oct352077376705
9100088028101
1031423593925
1112365888239
12610b846231
132c6a2b4a79
14174153d0b3
15c3dace76a
hex750fdfdc5

31423593925 has 12 divisors (see below), whose sum is σ = 39002791360. Its totient is φ = 25114659120.

The previous prime is 31423593923. The next prime is 31423593937. The reversal of 31423593925 is 52939532413.

It is not a de Polignac number, because 31423593925 - 21 = 31423593923 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423593923) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 578907 + ... + 630856.

Almost surely, 231423593925 is an apocalyptic number.

It is an amenable number.

31423593925 is a deficient number, since it is larger than the sum of its proper divisors (7579197435).

31423593925 is a wasteful number, since it uses less digits than its factorization.

31423593925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210812 (or 1210807 counting only the distinct ones).

The product of its digits is 874800, while the sum is 46.

The spelling of 31423593925 in words is "thirty-one billion, four hundred twenty-three million, five hundred ninety-three thousand, nine hundred twenty-five".

Divisors: 1 5 25 1039 5195 25975 1209763 6048815 30244075 1256943757 6284718785 31423593925