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13979315142 = 2321359740663
BaseRepresentation
bin11010000010011101…
…10110101111000110
31100002020112210021200
431001032312233012
5212112201041032
610231053123330
71003264134552
oct150116665706
940066483250
1013979315142
115a23a60411
122861789546
13141a248b10
14968850862
1556c3e947c
hex3413b6bc6

13979315142 has 24 divisors (see below), whose sum is σ = 32618402544. Its totient is φ = 4301327664.

The previous prime is 13979315131. The next prime is 13979315149. The reversal of 13979315142 is 24151397931.

13979315142 is a `hidden beast` number, since 1 + 39 + 79 + 31 + 514 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13979315149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29870098 + ... + 29870565.

It is an arithmetic number, because the mean of its divisors is an integer number (1359100106).

Almost surely, 213979315142 is an apocalyptic number.

13979315142 is an abundant number, since it is smaller than the sum of its proper divisors (18639087402).

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

13979315142 is a wasteful number, since it uses less digits than its factorization.

13979315142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59740684 (or 59740681 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The spelling of 13979315142 in words is "thirteen billion, nine hundred seventy-nine million, three hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 59740663 119481326 179221989 358443978 537665967 776628619 1075331934 1553257238 2329885857 4659771714 6989657571 13979315142