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27138268 = 2231218857
BaseRepresentation
bin110011110000…
…1100011011100
31220001202201001
41213201203130
523421411033
62405400044
7446446213
oct147414334
956052631
1027138268
1114356423
129109024
135812561
14386607a
1525b0e7d
hex19e18dc

27138268 has 12 divisors (see below), whose sum is σ = 49024192. Its totient is φ = 13131360.

The previous prime is 27138263. The next prime is 27138271. The reversal of 27138268 is 86283172.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27138263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109305 + ... + 109552.

Almost surely, 227138268 is an apocalyptic number.

It is an amenable number.

27138268 is a deficient number, since it is larger than the sum of its proper divisors (21885924).

27138268 is a wasteful number, since it uses less digits than its factorization.

27138268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218892 (or 218890 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 27138268 is about 5209.4402770355. The cubic root of 27138268 is about 300.5112320149.

The spelling of 27138268 in words is "twenty-seven million, one hundred thirty-eight thousand, two hundred sixty-eight".

Divisors: 1 2 4 31 62 124 218857 437714 875428 6784567 13569134 27138268