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12815382 = 2317125641
BaseRepresentation
bin110000111000…
…110000010110
3220010002101210
4300320300112
511240043012
61134402250
7213633426
oct60706026
926102353
1012815382
117263428
124360386
132869188
1419b8486
1511d223c
hexc38c16

12815382 has 16 divisors (see below), whose sum is σ = 27138672. Its totient is φ = 4020480.

The previous prime is 12815353. The next prime is 12815417. The reversal of 12815382 is 28351821.

It is a congruent number.

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, 62719 + ... + 62922.

It is an arithmetic number, because the mean of its divisors is an integer number (1696167).

Almost surely, 212815382 is an apocalyptic number.

12815382 is an abundant number, since it is smaller than the sum of its proper divisors (14323290).

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

12815382 is a wasteful number, since it uses less digits than its factorization.

12815382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125663.

The product of its digits is 3840, while the sum is 30.

The square root of 12815382 is about 3579.8578184056. The cubic root of 12815382 is about 234.0150841325.

The spelling of 12815382 in words is "twelve million, eight hundred fifteen thousand, three hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 125641 251282 376923 753846 2135897 4271794 6407691 12815382