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27947372 = 2221133113
BaseRepresentation
bin110101010011…
…1000101101100
31221120212120212
41222213011230
524123303442
62435001552
7456356135
oct152470554
957525525
1027947372
1114859302
1294392b8
135a3690b
1439d6c8c
1526c0a82
hex1aa716c

27947372 has 12 divisors (see below), whose sum is σ = 49141176. Its totient is φ = 13907040.

The previous prime is 27947357. The next prime is 27947401. The reversal of 27947372 is 27374972.

It is an unprimeable number.

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, 15713 + ... + 17400.

It is an arithmetic number, because the mean of its divisors is an integer number (4095098).

Almost surely, 227947372 is an apocalyptic number.

It is an amenable number.

27947372 is a deficient number, since it is larger than the sum of its proper divisors (21193804).

27947372 is a wasteful number, since it uses less digits than its factorization.

27947372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33328 (or 33326 counting only the distinct ones).

The product of its digits is 148176, while the sum is 41.

The square root of 27947372 is about 5286.5274046391. The cubic root of 27947372 is about 303.4685283380.

The spelling of 27947372 in words is "twenty-seven million, nine hundred forty-seven thousand, three hundred seventy-two".

Divisors: 1 2 4 211 422 844 33113 66226 132452 6986843 13973686 27947372