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27008471 = 731711753
BaseRepresentation
bin110011100000…
…1110111010111
31212211011122202
41213001313113
523403232341
62402515115
7445365620
oct147016727
955734582
1027008471
1114277956
129065a9b
135798459
143830a47
15258779b
hex19c1dd7

27008471 has 16 divisors (see below), whose sum is σ = 32329728. Its totient is φ = 22075200.

The previous prime is 27008459. The next prime is 27008473. The reversal of 27008471 is 17480072.

It is a de Polignac number, because none of the positive numbers 2k-27008471 is a prime.

It is a super-3 number, since 3×270084713 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27008473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14531 + ... + 16283.

It is an arithmetic number, because the mean of its divisors is an integer number (2020608).

Almost surely, 227008471 is an apocalyptic number.

27008471 is a deficient number, since it is larger than the sum of its proper divisors (5321257).

27008471 is a wasteful number, since it uses less digits than its factorization.

27008471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 27008471 is about 5196.9674811374. The cubic root of 27008471 is about 300.0313707935.

The spelling of 27008471 in words is "twenty-seven million, eight thousand, four hundred seventy-one".

Divisors: 1 7 31 71 217 497 1753 2201 12271 15407 54343 124463 380401 871241 3858353 27008471