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25275005308 = 2272785132411
BaseRepresentation
bin10111100010100000…
…011111100101111100
32102020110101022011201
4113202200133211330
5403230400132213
615340003025244
71553224000060
oct274240374574
972213338151
1025275005308
11a7a0099643
124a9466b224
1324ca4c2657
14131aad1aa0
159cdde56dd
hex5e281f97c

25275005308 has 24 divisors (see below), whose sum is σ = 50553385344. Its totient is φ = 10831422000.

The previous prime is 25275005297. The next prime is 25275005333. The reversal of 25275005308 is 80350057252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763623 + ... + 796033.

It is an arithmetic number, because the mean of its divisors is an integer number (2106391056).

Almost surely, 225275005308 is an apocalyptic number.

25275005308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25275005308 is an abundant number, since it is smaller than the sum of its proper divisors (25278380036).

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

25275005308 is a wasteful number, since it uses less digits than its factorization.

25275005308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60273 (or 60271 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 25275005308 in words is "twenty-five billion, two hundred seventy-five million, five thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 27851 32411 55702 64822 111404 129644 194957 226877 389914 453754 779828 907508 902678761 1805357522 3610715044 6318751327 12637502654 25275005308