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12911692386 = 233169417701
BaseRepresentation
bin11000000011001100…
…01100101001100010
31020022211121221012010
430001212030221202
5202420343124021
65533114213350
7634651401015
oct140146145142
936284557163
1012911692386
11552634a65a
122604124256
1312a9cc3188
148a6b3d37c
1550880b976
hex30198ca62

12911692386 has 16 divisors (see below), whose sum is σ = 26656397568. Its totient is φ = 4165062000.

The previous prime is 12911692379. The next prime is 12911692393. The reversal of 12911692386 is 68329611921.

It is an interprime number because it is at equal distance from previous prime (12911692379) and next prime (12911692393).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34708665 + ... + 34709036.

It is an arithmetic number, because the mean of its divisors is an integer number (1666024848).

Almost surely, 212911692386 is an apocalyptic number.

12911692386 is an abundant number, since it is smaller than the sum of its proper divisors (13744705182).

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

12911692386 is a wasteful number, since it uses less digits than its factorization.

12911692386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69417737.

The product of its digits is 279936, while the sum is 48.

The spelling of 12911692386 in words is "twelve billion, nine hundred eleven million, six hundred ninety-two thousand, three hundred eighty-six".

Divisors: 1 2 3 6 31 62 93 186 69417701 138835402 208253103 416506206 2151948731 4303897462 6455846193 12911692386