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27385146 = 2321521397
BaseRepresentation
bin110100001110…
…1110100111010
31220112022100200
41220131310322
524002311041
62414543030
7451525035
oct150356472
956468320
1027385146
1114504958
129207a76
13589aa39
1438cc01c
15260e1b6
hex1a1dd3a

27385146 has 12 divisors (see below), whose sum is σ = 59334522. Its totient is φ = 9128376.

The previous prime is 27385139. The next prime is 27385159. The reversal of 27385146 is 64158372.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 2134521 = 5025^2 + 1461^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27385146.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 760681 + ... + 760716.

Almost surely, 227385146 is an apocalyptic number.

27385146 is an abundant number, since it is smaller than the sum of its proper divisors (31949376).

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

27385146 is a wasteful number, since it uses less digits than its factorization.

27385146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521405 (or 1521402 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 27385146 is about 5233.0818835558. The cubic root of 27385146 is about 301.4197372219.

The spelling of 27385146 in words is "twenty-seven million, three hundred eighty-five thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 1521397 3042794 4564191 9128382 13692573 27385146