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31374515112 = 2331999165393
BaseRepresentation
bin11101001110000100…
…010001101110101000
32222222112200111122020
4131032010101232220
51003223333440422
622225132424440
72160326656353
oct351604215650
988875614566
1031374515112
1112340106636
1260b7318120
132c6008ca55
141738c0529a
15c3963795c
hex74e111ba8

31374515112 has 32 divisors (see below), whose sum is σ = 78441410880. Its totient is φ = 10457488640.

The previous prime is 31374515101. The next prime is 31374515143. The reversal of 31374515112 is 21151547313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447088 + ... + 512480.

It is an arithmetic number, because the mean of its divisors is an integer number (2451294090).

Almost surely, 231374515112 is an apocalyptic number.

It is an amenable number.

31374515112 is an abundant number, since it is smaller than the sum of its proper divisors (47066895768).

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

31374515112 is a wasteful number, since it uses less digits than its factorization.

31374515112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85393 (or 85389 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The spelling of 31374515112 in words is "thirty-one billion, three hundred seventy-four million, five hundred fifteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 19991 39982 59973 65393 79964 119946 130786 159928 196179 239892 261572 392358 479784 523144 784716 1569432 1307271463 2614542926 3921814389 5229085852 7843628778 10458171704 15687257556 31374515112