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25730890002 = 2331144341641
BaseRepresentation
bin10111111101101011…
…100011100100010010
32110102020012122102000
4113331223203210102
5410144101440002
615453130134430
71600430646006
oct277553434422
973366178360
1025730890002
11aa04464554
124ba1281416
132570a9c9cc
141361482706
15a08e4761c
hex5fdae3912

25730890002 has 32 divisors (see below), whose sum is σ = 57186125760. Its totient is φ = 8576007840.

The previous prime is 25730889967. The next prime is 25730890019. The reversal of 25730890002 is 20009803752.

It is a happy number.

25730890002 is a `hidden beast` number, since 2 + 573 + 0 + 89 + 0 + 0 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597102 + ... + 638742.

It is an arithmetic number, because the mean of its divisors is an integer number (1787066430).

Almost surely, 225730890002 is an apocalyptic number.

25730890002 is an abundant number, since it is smaller than the sum of its proper divisors (31455235758).

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

25730890002 is a wasteful number, since it uses less digits than its factorization.

25730890002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53095 (or 53089 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 25730890002 in words is "twenty-five billion, seven hundred thirty million, eight hundred ninety thousand, two".

Divisors: 1 2 3 6 9 18 27 54 11443 22886 34329 41641 68658 83282 102987 124923 205974 249846 308961 374769 617922 749538 1124307 2248614 476497963 952995926 1429493889 2858987778 4288481667 8576963334 12865445001 25730890002