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13287267 = 337229307
BaseRepresentation
bin110010101011…
…111101100011
3221000001201000
4302223331203
511400143032
61152443043
7220640250
oct62537543
927001630
1013287267
117555a14
124549483
1329a2bb6
141a9c427
151276e7c
hexcabf63

13287267 has 32 divisors (see below), whose sum is σ = 22668800. Its totient is φ = 7534944.

The previous prime is 13287233. The next prime is 13287269. The reversal of 13287267 is 76278231.

It is not a de Polignac number, because 13287267 - 27 = 13287139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13287269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43128 + ... + 43434.

It is an arithmetic number, because the mean of its divisors is an integer number (708400).

Almost surely, 213287267 is an apocalyptic number.

13287267 is a deficient number, since it is larger than the sum of its proper divisors (9381533).

13287267 is a wasteful number, since it uses less digits than its factorization.

13287267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 546 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 13287267 is about 3645.1703663889. The cubic root of 13287267 is about 236.8528168021.

The spelling of 13287267 in words is "thirteen million, two hundred eighty-seven thousand, two hundred sixty-seven".

Divisors: 1 3 7 9 21 27 63 189 229 307 687 921 1603 2061 2149 2763 4809 6183 6447 8289 14427 19341 43281 58023 70303 210909 492121 632727 1476363 1898181 4429089 13287267