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13895144 = 2314911657
BaseRepresentation
bin110101000000…
…010111101000
3222010221112222
4311000113220
512024121034
61213453212
7226051424
oct65002750
928127488
1013895144
11793069a
1247a1208
132b567a3
141bb9b84
15134712e
hexd405e8

13895144 has 16 divisors (see below), whose sum is σ = 26230500. Its totient is φ = 6900352.

The previous prime is 13895143. The next prime is 13895159. The reversal of 13895144 is 44159831.

It can be written as a sum of positive squares in 2 ways, for example, as 13764100 + 131044 = 3710^2 + 362^2 .

It is not an unprimeable number, because it can be changed into a prime (13895143) 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, 4637 + ... + 7020.

Almost surely, 213895144 is an apocalyptic number.

It is an amenable number.

13895144 is a deficient number, since it is larger than the sum of its proper divisors (12335356).

13895144 is a wasteful number, since it uses less digits than its factorization.

13895144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11812 (or 11808 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 13895144 is about 3727.6190792515. The cubic root of 13895144 is about 240.4110086939.

The spelling of 13895144 in words is "thirteen million, eight hundred ninety-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 149 298 596 1192 11657 23314 46628 93256 1736893 3473786 6947572 13895144