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13682225 = 521095021
BaseRepresentation
bin110100001100…
…011000110001
3221202010111002
4310030120301
512000312400
61205131345
7224203604
oct64143061
927663432
1013682225
1177a5727
1246b9b55
132ab08bb
141b6233b
151303ed5
hexd0c631

13682225 has 12 divisors (see below), whose sum is σ = 17125020. Its totient is φ = 10843200.

The previous prime is 13682219. The next prime is 13682243. The reversal of 13682225 is 52228631.

13682225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 519841 + 13162384 = 721^2 + 3628^2 .

It is not a de Polignac number, because 13682225 - 24 = 13682209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215 + ... + 5235.

It is an arithmetic number, because the mean of its divisors is an integer number (1427085).

Almost surely, 213682225 is an apocalyptic number.

It is an amenable number.

13682225 is a deficient number, since it is larger than the sum of its proper divisors (3442795).

13682225 is a wasteful number, since it uses less digits than its factorization.

13682225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140 (or 5135 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 13682225 is about 3698.9491751037. The cubic root of 13682225 is about 239.1767219418.

The spelling of 13682225 in words is "thirteen million, six hundred eighty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 109 545 2725 5021 25105 125525 547289 2736445 13682225