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31054115112 = 2332335553311
BaseRepresentation
bin11100111010111110…
…000011000100101000
32222011012210111110120
4130322332003010220
51002044323140422
622133245243240
72146356423516
oct347276030450
988135714416
1031054115112
1112196269349
126027b63520
132c0b89b757
1417084414b6
15c1b44945c
hex73af83128

31054115112 has 32 divisors (see below), whose sum is σ = 77968500480. Its totient is φ = 10306943360.

The previous prime is 31054115087. The next prime is 31054115117. The reversal of 31054115112 is 21151145013.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31054115117) 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 7 ways as a sum of consecutive naturals, for example, 2771064 + ... + 2782247.

It is an arithmetic number, because the mean of its divisors is an integer number (2436515640).

Almost surely, 231054115112 is an apocalyptic number.

It is an amenable number.

31054115112 is an abundant number, since it is smaller than the sum of its proper divisors (46914385368).

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

31054115112 is a wasteful number, since it uses less digits than its factorization.

31054115112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553553 (or 5553549 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The spelling of 31054115112 in words is "thirty-one billion, fifty-four million, one hundred fifteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 233 466 699 932 1398 1864 2796 5592 5553311 11106622 16659933 22213244 33319866 44426488 66639732 133279464 1293921463 2587842926 3881764389 5175685852 7763528778 10351371704 15527057556 31054115112