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27008428 = 2223328979
BaseRepresentation
bin110011100000…
…1110110101100
31212211011121011
41213001312230
523403232203
62402515004
7445365526
oct147016654
955734534
1027008428
1114277917
129065a64
135798425
143830a16
15258776d
hex19c1dac

27008428 has 12 divisors (see below), whose sum is σ = 47469240. Its totient is φ = 13445792.

The previous prime is 27008419. The next prime is 27008453. The reversal of 27008428 is 82480072.

It is a self number, because there is not a number n which added to its sum of digits gives 27008428.

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, 13558 + ... + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (3955770).

Almost surely, 227008428 is an apocalyptic number.

It is an amenable number.

27008428 is a deficient number, since it is larger than the sum of its proper divisors (20460812).

27008428 is a wasteful number, since it uses less digits than its factorization.

27008428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29216 (or 29214 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 27008428 is about 5196.9633441078. The cubic root of 27008428 is about 300.0312115675.

The spelling of 27008428 in words is "twenty-seven million, eight thousand, four hundred twenty-eight".

Divisors: 1 2 4 233 466 932 28979 57958 115916 6752107 13504214 27008428