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12368394164 = 2272319205581
BaseRepresentation
bin10111000010011011…
…01011011110110100
31011220222022112010202
423201031223132310
5200312302103124
65403145340032
7615333421130
oct134115533664
934828275122
1012368394164
1152776aa665
122492197618
13122158b239
148549163c0
154c5c8e5ae
hex2e136b7b4

12368394164 has 24 divisors (see below), whose sum is σ = 25812302208. Its totient is φ = 5070273120.

The previous prime is 12368394133. The next prime is 12368394209. The reversal of 12368394164 is 46149386321.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9602147 + ... + 9603434.

It is an arithmetic number, because the mean of its divisors is an integer number (1075512592).

Almost surely, 212368394164 is an apocalyptic number.

12368394164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12368394164 is an abundant number, since it is smaller than the sum of its proper divisors (13443908044).

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

12368394164 is a wasteful number, since it uses less digits than its factorization.

12368394164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19205615 (or 19205613 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The spelling of 12368394164 in words is "twelve billion, three hundred sixty-eight million, three hundred ninety-four thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 19205581 38411162 76822324 134439067 268878134 441728363 537756268 883456726 1766913452 3092098541 6184197082 12368394164