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12495620 = 225761821
BaseRepresentation
bin101111101010…
…101100000100
3212111211202202
4233222230010
511144324440
61123454032
7211132244
oct57525404
925454682
1012495620
117065165
124227318
132786777
141933b24
15116c615
hexbeab04

12495620 has 24 divisors (see below), whose sum is σ = 26307288. Its totient is φ = 4985600.

The previous prime is 12495599. The next prime is 12495661. The reversal of 12495620 is 2659421.

It is a happy number.

12495620 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 4 ways, for example, as 329476 + 12166144 = 574^2 + 3488^2 .

It is a super-2 number, since 2×124956202 = 312281038368800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14810 + ... + 15630.

It is an arithmetic number, because the mean of its divisors is an integer number (1096137).

Almost surely, 212495620 is an apocalyptic number.

12495620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12495620 is an abundant number, since it is smaller than the sum of its proper divisors (13811668).

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

12495620 is a wasteful number, since it uses less digits than its factorization.

12495620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12495620 is about 3534.9144261212. The cubic root of 12495620 is about 232.0523316352.

The spelling of 12495620 in words is "twelve million, four hundred ninety-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 761 821 1522 1642 3044 3284 3805 4105 7610 8210 15220 16420 624781 1249562 2499124 3123905 6247810 12495620