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31913120414 = 274759822037
BaseRepresentation
bin11101101110001010…
…111001001010011110
310001101002011111012202
4131232022321022132
51010324224323124
622354412531502
72206560022250
oct355612711236
9101332144182
1031913120414
111259714078a
126227780b92
133017840906
14178a569cd0
15c6ba795ae
hex76e2b929e

31913120414 has 32 divisors (see below), whose sum is σ = 56819266560. Its totient is φ = 13159152288.

The previous prime is 31913120401. The next prime is 31913120419. The reversal of 31913120414 is 41402131913.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31913120419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372197 + ... + 449840.

It is an arithmetic number, because the mean of its divisors is an integer number (1775602080).

Almost surely, 231913120414 is an apocalyptic number.

31913120414 is a deficient number, since it is larger than the sum of its proper divisors (24906146146).

31913120414 is a wasteful number, since it uses less digits than its factorization.

31913120414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822152.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 31913120414 in words is "thirty-one billion, nine hundred thirteen million, one hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 7 14 47 59 94 118 329 413 658 826 2773 5546 19411 38822 822037 1644074 5754259 11508518 38635739 48500183 77271478 97000366 270450173 339501281 540900346 679002562 2279508601 4559017202 15956560207 31913120414