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12641252875 = 534316714083
BaseRepresentation
bin10111100010111101…
…00011011000001011
31012121222202011220221
423301132203120023
5201342130043000
65450213530511
7625155606436
oct136136433013
935558664827
1012641252875
1153a7726429
122549643a37
131265c752b4
1487cc6281d
154debdb61a
hex2f17a360b

12641252875 has 32 divisors (see below), whose sum is σ = 16240992768. Its totient is φ = 9817970400.

The previous prime is 12641252849. The next prime is 12641252879. The reversal of 12641252875 is 57825214621.

It is not a de Polignac number, because 12641252875 - 215 = 12641220107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12641252879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890584 + ... + 904666.

It is an arithmetic number, because the mean of its divisors is an integer number (507531024).

Almost surely, 212641252875 is an apocalyptic number.

12641252875 is a deficient number, since it is larger than the sum of its proper divisors (3599739893).

12641252875 is a wasteful number, since it uses less digits than its factorization.

12641252875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14308 (or 14298 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The spelling of 12641252875 in words is "twelve billion, six hundred forty-one million, two hundred fifty-two thousand, eight hundred seventy-five".

Divisors: 1 5 25 43 125 167 215 835 1075 4175 5375 7181 14083 20875 35905 70415 179525 352075 605569 897625 1760375 2351861 3027845 11759305 15139225 58796525 75696125 101130023 293982625 505650115 2528250575 12641252875