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31384439006 = 2731151186761
BaseRepresentation
bin11101001110101010…
…001000100011011110
310000000020100200122212
4131032222020203132
51003233404022011
622230125240422
72160510221114
oct351652104336
9100006320585
1031384439006
11123457745a8
1260ba703112
132c62155a8b
14173a269ab4
15c3a44808b
hex74ea888de

31384439006 has 16 divisors (see below), whose sum is σ = 47763260928. Its totient is φ = 15463728000.

The previous prime is 31384438999. The next prime is 31384439027. The reversal of 31384439006 is 60093448313.

It is a congruent number.

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, 74666 + ... + 261426.

It is an arithmetic number, because the mean of its divisors is an integer number (2985203808).

Almost surely, 231384439006 is an apocalyptic number.

31384439006 is a deficient number, since it is larger than the sum of its proper divisors (16378821922).

31384439006 is a wasteful number, since it uses less digits than its factorization.

31384439006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187987.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 31384439006 in words is "thirty-one billion, three hundred eighty-four million, four hundred thirty-nine thousand, six".

Divisors: 1 2 73 146 1151 2302 84023 168046 186761 373522 13633553 27267106 214961911 429923822 15692219503 31384439006