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12868037652 = 2231072336471
BaseRepresentation
bin10111111101111111…
…01010110000010100
31020012210111001011010
423332333222300110
5202323204201102
65524514412220
7633611341521
oct137677526024
936183431133
1012868037652
115503743168
1225b1591070
1312a0c49c82
148a1018148
15504a86d6c
hex2fefeac14

12868037652 has 12 divisors (see below), whose sum is σ = 30025421216. Its totient is φ = 4289345880.

The previous prime is 12868037573. The next prime is 12868037671. The reversal of 12868037652 is 25673086821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536168224 + ... + 536168247.

Almost surely, 212868037652 is an apocalyptic number.

12868037652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12868037652 is an abundant number, since it is smaller than the sum of its proper divisors (17157383564).

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

12868037652 is a wasteful number, since it uses less digits than its factorization.

12868037652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072336478 (or 1072336476 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 12868037652 in words is "twelve billion, eight hundred sixty-eight million, thirty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 1072336471 2144672942 3217009413 4289345884 6434018826 12868037652