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252519860 = 22512625993
BaseRepresentation
bin11110000110100…
…10010110110100
3122121011100010102
433003102112310
51004121113420
641020213232
76154245335
oct1703222664
9577140112
10252519860
1111a5a49aa
127069a218
1340415648
142577428c
1517280a75
hexf0d25b4

252519860 has 12 divisors (see below), whose sum is σ = 530291748. Its totient is φ = 101007936.

The previous prime is 252519859. The next prime is 252519901. The reversal of 252519860 is 68915252.

252519860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35664784 + 216855076 = 5972^2 + 14726^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6312977 + ... + 6313016.

It is an arithmetic number, because the mean of its divisors is an integer number (44190979).

Almost surely, 2252519860 is an apocalyptic number.

252519860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252519860 is an abundant number, since it is smaller than the sum of its proper divisors (277771888).

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

252519860 is a wasteful number, since it uses less digits than its factorization.

252519860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626002 (or 12626000 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 252519860 is about 15890.8734813414. The cubic root of 252519860 is about 632.0700030614.

The spelling of 252519860 in words is "two hundred fifty-two million, five hundred nineteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 12625993 25251986 50503972 63129965 126259930 252519860