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12959556960 = 2535717972339
BaseRepresentation
bin11000001000111001…
…10010010101100000
31020110011200201001010
430010130302111200
5203020121310320
65541544140520
7636102262620
oct140434622540
936404621033
1012959556960
115550371a59
122618167740
1312b6bb15cc
148ad23c880
1550cb13ae0
hex304732560

12959556960 has 384 divisors, whose sum is σ = 49929384960. Its totient is φ = 2758017024.

The previous prime is 12959556959. The next prime is 12959556991. The reversal of 12959556960 is 6965595921.

It is a self number, because there is not a number n which added to its sum of digits gives 12959556960.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 5539471 + ... + 5541809.

It is an arithmetic number, because the mean of its divisors is an integer number (130024440).

Almost surely, 212959556960 is an apocalyptic number.

12959556960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12959556960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24964692480).

12959556960 is an abundant number, since it is smaller than the sum of its proper divisors (36969828000).

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

12959556960 is a wasteful number, since it uses less digits than its factorization.

12959556960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478 (or 2470 counting only the distinct ones).

The product of its (nonzero) digits is 6561000, while the sum is 57.

The spelling of 12959556960 in words is "twelve billion, nine hundred fifty-nine million, five hundred fifty-six thousand, nine hundred sixty".