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31010894057 = 11131097319763
BaseRepresentation
bin11100111000011001…
…001011000011101001
32222001012110122022202
4130320121023003221
51002002242102212
622125103025545
72145323151563
oct347031130351
988035418282
1031010894057
1112173928770
12601559b2b5
132c02947a70
1417027d0333
15c1775d0c2
hex73864b0e9

31010894057 has 16 divisors (see below), whose sum is σ = 36437542848. Its totient is φ = 26019439680.

The previous prime is 31010894041. The next prime is 31010894059. The reversal of 31010894057 is 75049801013.

It is not a de Polignac number, because 31010894057 - 24 = 31010894041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31010894057.

It is not an unprimeable number, because it can be changed into a prime (31010894059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559258 + ... + 1579020.

It is an arithmetic number, because the mean of its divisors is an integer number (2277346428).

Almost surely, 231010894057 is an apocalyptic number.

It is an amenable number.

31010894057 is a deficient number, since it is larger than the sum of its proper divisors (5426648791).

31010894057 is a wasteful number, since it uses less digits than its factorization.

31010894057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30760.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 31010894057 in words is "thirty-one billion, ten million, eight hundred ninety-four thousand, fifty-seven".

Divisors: 1 11 13 143 10973 19763 120703 142649 217393 256919 1569139 2826109 216859399 2385453389 2819172187 31010894057