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27131208 = 2331386959
BaseRepresentation
bin110011101111…
…1110101001000
31220001102000120
41213133311020
523421144313
62405303240
7446416506
oct147376510
956042016
1027131208
1114351095
129104b20
13580c290
143863676
1525add23
hex19dfd48

27131208 has 32 divisors (see below), whose sum is σ = 73046400. Its totient is φ = 8347968.

The previous prime is 27131197. The next prime is 27131213. The reversal of 27131208 is 80213172.

It is a super-2 number, since 2×271312082 = 1472204895078528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 43168 + ... + 43791.

It is an arithmetic number, because the mean of its divisors is an integer number (2282700).

Almost surely, 227131208 is an apocalyptic number.

It is an amenable number.

27131208 is an abundant number, since it is smaller than the sum of its proper divisors (45915192).

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

27131208 is a wasteful number, since it uses less digits than its factorization.

27131208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86981 (or 86977 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 27131208 is about 5208.7626169754. The cubic root of 27131208 is about 300.4851704979.

The spelling of 27131208 in words is "twenty-seven million, one hundred thirty-one thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 86959 173918 260877 347836 521754 695672 1043508 1130467 2087016 2260934 3391401 4521868 6782802 9043736 13565604 27131208