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27297930 = 2351182721
BaseRepresentation
bin110100000100…
…0100010001010
31220100212201110
41220020202022
523442013210
62413031150
7451012542
oct150104212
956325643
1027297930
1114455380
1291854b6
13586a12a
1438a8322
1525e3420
hex1a0888a

27297930 has 32 divisors (see below), whose sum is σ = 71471808. Its totient is φ = 6617600.

The previous prime is 27297917. The next prime is 27297973. The reversal of 27297930 is 3979272.

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, 41031 + ... + 41690.

It is an arithmetic number, because the mean of its divisors is an integer number (2233494).

Almost surely, 227297930 is an apocalyptic number.

27297930 is an abundant number, since it is smaller than the sum of its proper divisors (44173878).

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

27297930 is a wasteful number, since it uses less digits than its factorization.

27297930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82742.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 27297930 is about 5224.7420988983. The cubic root of 27297930 is about 301.0994105112.

The spelling of 27297930 in words is "twenty-seven million, two hundred ninety-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 82721 165442 248163 413605 496326 827210 909931 1240815 1819862 2481630 2729793 4549655 5459586 9099310 13648965 27297930