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31374316478 = 229540936491
BaseRepresentation
bin11101001110000011…
…100001001110111110
32222222112022102011102
4131032003201032332
51003223311111403
622225124253102
72160325201301
oct351603411676
988875272142
1031374316478
111233aa9037a
1260b7241192
132c6002050b
141738b92b38
15c395e8b88
hex74e0e13be

31374316478 has 8 divisors (see below), whose sum is σ = 48684284280. Its totient is φ = 15146221720.

The previous prime is 31374316429. The next prime is 31374316487. The reversal of 31374316478 is 87461347313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 270468188 + ... + 270468303.

It is an arithmetic number, because the mean of its divisors is an integer number (6085535535).

Almost surely, 231374316478 is an apocalyptic number.

31374316478 is a deficient number, since it is larger than the sum of its proper divisors (17309967802).

31374316478 is a wasteful number, since it uses less digits than its factorization.

31374316478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540936522.

The product of its digits is 1016064, while the sum is 47.

The spelling of 31374316478 in words is "thirty-one billion, three hundred seventy-four million, three hundred sixteen thousand, four hundred seventy-eight".

Divisors: 1 2 29 58 540936491 1081872982 15687158239 31374316478