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27108940 = 2251355447
BaseRepresentation
bin110011101101…
…0011001001100
31220000021110211
41213122121030
523414441230
62405012204
7446264545
oct147323114
956007424
1027108940
1114336391
1290b4064
1358020c1
1438594cc
1525a742a
hex19da64c

27108940 has 12 divisors (see below), whose sum is σ = 56928816. Its totient is φ = 10843568.

The previous prime is 27108923. The next prime is 27108941. The reversal of 27108940 is 4980172.

It is not an unprimeable number, because it can be changed into a prime (27108941) 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, 677704 + ... + 677743.

It is an arithmetic number, because the mean of its divisors is an integer number (4744068).

Almost surely, 227108940 is an apocalyptic number.

27108940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27108940 is an abundant number, since it is smaller than the sum of its proper divisors (29819876).

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

27108940 is a wasteful number, since it uses less digits than its factorization.

27108940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355456 (or 1355454 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 27108940 is about 5206.6246263774. The cubic root of 27108940 is about 300.4029400369.

The spelling of 27108940 in words is "twenty-seven million, one hundred eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1355447 2710894 5421788 6777235 13554470 27108940