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108149320715 = 5312103218521
BaseRepresentation
bin110010010111000110…
…0111010110000001011
3101100011010000201122212
41210232030322300023
53232442211230330
6121403315135335
710546020026012
oct1445614726013
9340133021585
10108149320715
11419585213a7
1218b62ba454b
13a276c744c7
14533d4b7a79
152c2e8cd295
hex192e33ac0b

108149320715 has 24 divisors (see below), whose sum is σ = 135403223904. Its totient is φ = 82915228800.

The previous prime is 108149320711. The next prime is 108149320729. The reversal of 108149320715 is 517023941801.

It is not a de Polignac number, because 108149320715 - 22 = 108149320711 is a prime.

It is a super-2 number, since 2×1081493207152 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108149320711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385655 + ... + 604175.

It is an arithmetic number, because the mean of its divisors is an integer number (5641800996).

Almost surely, 2108149320715 is an apocalyptic number.

108149320715 is a deficient number, since it is larger than the sum of its proper divisors (27253903189).

108149320715 is a wasteful number, since it uses less digits than its factorization.

108149320715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218691 (or 218660 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 108149320715 in words is "one hundred eight billion, one hundred forty-nine million, three hundred twenty thousand, seven hundred fifteen".

Divisors: 1 5 31 103 155 515 961 3193 4805 15965 98983 218521 494915 1092605 6774151 22507663 33870755 112538315 209998681 697737553 1049993405 3488687765 21629864143 108149320715