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12268490 = 2513194967
BaseRepresentation
bin101110110011…
…001111001010
3212002022012112
4232303033022
511120042430
61114542322
7206165123
oct56631712
925068175
1012268490
116a1a553
1241379a2
132707280
1418b504a
151125195
hexbb33ca

12268490 has 32 divisors (see below), whose sum is σ = 25038720. Its totient is φ = 4290624.

The previous prime is 12268489. The next prime is 12268541. The reversal of 12268490 is 9486221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (782460).

Almost surely, 212268490 is an apocalyptic number.

12268490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12268490 is an abundant number, since it is smaller than the sum of its proper divisors (12770230).

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

12268490 is a wasteful number, since it uses less digits than its factorization.

12268490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 12268490 is about 3502.6404325880. The cubic root of 12268490 is about 230.6377385658.

The spelling of 12268490 in words is "twelve million, two hundred sixty-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 494 1235 2470 4967 9934 24835 49670 64571 94373 129142 188746 322855 471865 645710 943730 1226849 2453698 6134245 12268490