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27139588 = 227969271
BaseRepresentation
bin110011110000…
…1111000000100
31220001211111221
41213201320010
523421431323
62405410124
7446453110
oct147417004
956054457
1027139588
1114357413
129109944
135813038
143866740
1525b155d
hex19e1e04

27139588 has 12 divisors (see below), whose sum is σ = 54279232. Its totient is φ = 11631240.

The previous prime is 27139559. The next prime is 27139591. The reversal of 27139588 is 88593172.

27139588 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484608 + ... + 484663.

Almost surely, 227139588 is an apocalyptic number.

27139588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27139588 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27139588 is a wasteful number, since it uses less digits than its factorization.

27139588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969282 (or 969280 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 27139588 is about 5209.5669685685. The cubic root of 27139588 is about 300.5161042049.

The spelling of 27139588 in words is "twenty-seven million, one hundred thirty-nine thousand, five hundred eighty-eight".

Divisors: 1 2 4 7 14 28 969271 1938542 3877084 6784897 13569794 27139588