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31034871522 = 234138412
BaseRepresentation
bin11100111001110100…
…101000111011100010
32222002212120211020000
4130321310220323202
51002024411342042
622131321000430
72146034024664
oct347164507342
988085524200
1031034871522
1112186415356
126021623116
132c078c1705
141705a72534
15c198e774c
hex739d28ee2

31034871522 has 30 divisors (see below), whose sum is σ = 69546125649. Its totient is φ = 10344209760.

The previous prime is 31034871521. The next prime is 31034871563. The reversal of 31034871522 is 22517843013.

31034871522 is a `hidden beast` number, since 31 + 0 + 34 + 8 + 71 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29956340241 + 1078531281 = 173079^2 + 32841^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=124569.

It is not an unprimeable number, because it can be changed into a prime (31034871521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2235322 + ... + 2249162.

Almost surely, 231034871522 is an apocalyptic number.

31034871522 is an abundant number, since it is smaller than the sum of its proper divisors (38511254127).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31034871522 is an frugal number, since it uses more digits than its factorization.

31034871522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696 (or 13846 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 31034871522 in words is "thirty-one billion, thirty-four million, eight hundred seventy-one thousand, five hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 13841 27682 41523 83046 124569 249138 373707 747414 1121121 2242242 191573281 383146562 574719843 1149439686 1724159529 3448319058 5172478587 10344957174 15517435761 31034871522