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27944164 = 2213750993
BaseRepresentation
bin110101010011…
…0010011100100
31221120201012001
41222212103210
524123203124
62434535044
7456343603
oct152462344
957521161
1027944164
1114856956
129437484
135a35311
1439d5a3a
1526beb44
hex1aa64e4

27944164 has 12 divisors (see below), whose sum is σ = 49260204. Its totient is φ = 13869824.

The previous prime is 27944101. The next prime is 27944167. The reversal of 27944164 is 46144972.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6041764 + 21902400 = 2458^2 + 4680^2 .

It is not an unprimeable number, because it can be changed into a prime (27944167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24949 + ... + 26044.

It is an arithmetic number, because the mean of its divisors is an integer number (4105017).

Almost surely, 227944164 is an apocalyptic number.

It is an amenable number.

27944164 is a deficient number, since it is larger than the sum of its proper divisors (21316040).

27944164 is a wasteful number, since it uses less digits than its factorization.

27944164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51134 (or 51132 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 27944164 is about 5286.2239831471. The cubic root of 27944164 is about 303.4569164616.

The spelling of 27944164 in words is "twenty-seven million, nine hundred forty-four thousand, one hundred sixty-four".

Divisors: 1 2 4 137 274 548 50993 101986 203972 6986041 13972082 27944164