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13264287 = 36616689
BaseRepresentation
bin110010100110…
…010110011111
3220221220011220
4302212112133
511343424122
61152144423
7220513251
oct62462637
926856156
1013264287
11753a723
124538113
1329955ba
141a93cd1
15127025c
hexca659f

13264287 has 8 divisors (see below), whose sum is σ = 17715120. Its totient is φ = 8828160.

The previous prime is 13264271. The next prime is 13264289. The reversal of 13264287 is 78246231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13264287 - 24 = 13264271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13264289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (2214390).

Almost surely, 213264287 is an apocalyptic number.

13264287 is a deficient number, since it is larger than the sum of its proper divisors (4450833).

13264287 is an equidigital number, since it uses as much as digits as its factorization.

13264287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353.

The product of its digits is 16128, while the sum is 33.

The square root of 13264287 is about 3642.0168862870. The cubic root of 13264287 is about 236.7161943117.

The spelling of 13264287 in words is "thirteen million, two hundred sixty-four thousand, two hundred eighty-seven".

Divisors: 1 3 661 1983 6689 20067 4421429 13264287