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31230562316 = 2215151706229
BaseRepresentation
bin11101000101011111…
…001001000000001100
32222121111210221112012
4131011133021000030
51002430010443231
622202551200352
72153631254042
oct350537110014
988544727465
1031230562316
1112276924788
1260770760b8
132c392ca495
141723a52392
15c2bb9ee2b
hex7457c900c

31230562316 has 12 divisors (see below), whose sum is σ = 55015428720. Its totient is φ = 15511868400.

The previous prime is 31230562273. The next prime is 31230562327. The reversal of 31230562316 is 61326503213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25852511 + ... + 25853718.

It is an arithmetic number, because the mean of its divisors is an integer number (4584619060).

Almost surely, 231230562316 is an apocalyptic number.

It is an amenable number.

31230562316 is a deficient number, since it is larger than the sum of its proper divisors (23784866404).

31230562316 is a wasteful number, since it uses less digits than its factorization.

31230562316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51706384 (or 51706382 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 31230562316 in words is "thirty-one billion, two hundred thirty million, five hundred sixty-two thousand, three hundred sixteen".

Divisors: 1 2 4 151 302 604 51706229 103412458 206824916 7807640579 15615281158 31230562316