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13271264 = 25641647
BaseRepresentation
bin110010101000…
…000011100000
3220222020202022
4302220003200
511344140024
61152241012
7220542506
oct62500340
926866668
1013271264
117544996
124540168
132998826
141a96676
15127235e
hexca80e0

13271264 has 24 divisors (see below), whose sum is σ = 26209008. Its totient is φ = 6615040.

The previous prime is 13271263. The next prime is 13271273. The reversal of 13271264 is 46217231.

It is a super-2 number, since 2×132712642 = 352252896315392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13271261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20189 + ... + 20835.

It is an arithmetic number, because the mean of its divisors is an integer number (1092042).

Almost surely, 213271264 is an apocalyptic number.

It is an amenable number.

13271264 is a deficient number, since it is larger than the sum of its proper divisors (12937744).

13271264 is an equidigital number, since it uses as much as digits as its factorization.

13271264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1290 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 13271264 is about 3642.9746087504. The cubic root of 13271264 is about 236.7576911872.

Adding to 13271264 its reverse (46217231), we get a palindrome (59488495).

The spelling of 13271264 in words is "thirteen million, two hundred seventy-one thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 32 641 647 1282 1294 2564 2588 5128 5176 10256 10352 20512 20704 414727 829454 1658908 3317816 6635632 13271264