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12800653662 = 237978293229
BaseRepresentation
bin10111110101111101…
…00111100101011110
31020001002200120200210
423322332213211132
5202203431404122
65514110233250
7632132521656
oct137276474536
936032616623
1012800653662
1154796a9615
122592ab5826
13128ccb60a4
148960b7366
154edbc640c
hex2fafa795e

12800653662 has 32 divisors (see below), whose sum is σ = 25672298400. Its totient is φ = 4255072128.

The previous prime is 12800653661. The next prime is 12800653667. The reversal of 12800653662 is 26635600821.

It is a self number, because there is not a number n which added to its sum of digits gives 12800653662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800653661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3962664 + ... + 3965892.

It is an arithmetic number, because the mean of its divisors is an integer number (802259325).

Almost surely, 212800653662 is an apocalyptic number.

12800653662 is an abundant number, since it is smaller than the sum of its proper divisors (12871644738).

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

12800653662 is a wasteful number, since it uses less digits than its factorization.

12800653662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 12800653662 in words is "twelve billion, eight hundred million, six hundred fifty-three thousand, six hundred sixty-two".

Divisors: 1 2 3 6 797 829 1594 1658 2391 2487 3229 4782 4974 6458 9687 19374 660713 1321426 1982139 2573513 2676841 3964278 5147026 5353682 7720539 8030523 15441078 16061046 2133442277 4266884554 6400326831 12800653662