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10031957898 = 2313313125591
BaseRepresentation
bin10010101011111001…
…11000011110001010
3221220010220021010020
421111330320132022
5131021140123043
64335243401310
7503413143444
oct112574703612
927803807106
1010031957898
1142888624a6
121b3b823236
13c3b4c9681
146b24c1494
153daac1e83
hex255f3878a

10031957898 has 16 divisors (see below), whose sum is σ = 20065582656. Its totient is φ = 3343708160.

The previous prime is 10031957891. The next prime is 10031957977. The reversal of 10031957898 is 89875913001.

It is a self number, because there is not a number n which added to its sum of digits gives 10031957898.

It is not an unprimeable number, because it can be changed into a prime (10031957891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17083 + ... + 142673.

It is an arithmetic number, because the mean of its divisors is an integer number (1254098916).

Almost surely, 210031957898 is an apocalyptic number.

10031957898 is an abundant number, since it is smaller than the sum of its proper divisors (10033624758).

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

10031957898 is a wasteful number, since it uses less digits than its factorization.

10031957898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138909.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 10031957898 in words is "ten billion, thirty-one million, nine hundred fifty-seven thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 13313 26626 39939 79878 125591 251182 376773 753546 1671992983 3343985966 5015978949 10031957898