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31052531013 = 372515891203
BaseRepresentation
bin11100111010111000…
…000000010101000101
32222011002211000111020
4130322320000111011
51002043421443023
622133151301353
72146340105250
oct347270002505
988132730436
1031052531013
1112195387179
12602751a859
132c0b46570a
14170814c097
15c1b234de3
hex73ae00545

31052531013 has 16 divisors (see below), whose sum is σ = 47506669056. Its totient is φ = 17673606000.

The previous prime is 31052531011. The next prime is 31052531023. The reversal of 31052531013 is 31013525013.

It is not a de Polignac number, because 31052531013 - 21 = 31052531011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31052531011) 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, 2940331 + ... + 2950872.

It is an arithmetic number, because the mean of its divisors is an integer number (2969166816).

Almost surely, 231052531013 is an apocalyptic number.

It is an amenable number.

31052531013 is a deficient number, since it is larger than the sum of its proper divisors (16454138043).

31052531013 is a wasteful number, since it uses less digits than its factorization.

31052531013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891464.

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 31052531013 in words is "thirty-one billion, fifty-two million, five hundred thirty-one thousand, thirteen".

Divisors: 1 3 7 21 251 753 1757 5271 5891203 17673609 41238421 123715263 1478691953 4436075859 10350843671 31052531013