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25208680252 = 227900310009
BaseRepresentation
bin10111011110100011…
…011110111100111100
32102001211120122022011
4113132203132330330
5403111410232002
615325233301004
71551460150420
oct273643367474
972054518264
1025208680252
11a766708648
124a76404764
1324b983c762
141311d88b80
159c81938d7
hex5de8def3c

25208680252 has 12 divisors (see below), whose sum is σ = 50417360560. Its totient is φ = 10803720096.

The previous prime is 25208680247. The next prime is 25208680261.

It is a happy number.

25208680252 is nontrivially palindromic in base 10.

25208680252 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 450154977 + ... + 450155032.

Almost surely, 225208680252 is an apocalyptic number.

It is an amenable number.

25208680252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25208680252 is a wasteful number, since it uses less digits than its factorization.

25208680252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900310020 (or 900310018 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 25208680252 in words is "twenty-five billion, two hundred eight million, six hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 900310009 1800620018 3601240036 6302170063 12604340126 25208680252