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13038868 = 223259717
BaseRepresentation
bin110001101111…
…010100010100
3220112102222001
4301233110110
511314220433
61143245044
7215554123
oct61572424
926472861
1013038868
1173a6327
124449784
132916b0b
141a35aba
15122857d
hexc6f514

13038868 has 6 divisors (see below), whose sum is σ = 22818026. Its totient is φ = 6519432.

The previous prime is 13038863. The next prime is 13038877. The reversal of 13038868 is 86883031.

13038868 is digitally balanced in base 2, 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 only one way, i.e., 11641744 + 1397124 = 3412^2 + 1182^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13038863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1629855 + ... + 1629862.

Almost surely, 213038868 is an apocalyptic number.

It is an amenable number.

13038868 is a deficient number, since it is larger than the sum of its proper divisors (9779158).

13038868 is a wasteful number, since it uses less digits than its factorization.

13038868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259721 (or 3259719 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 13038868 is about 3610.9372744483. The cubic root of 13038868 is about 235.3675732472.

The spelling of 13038868 in words is "thirteen million, thirty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 3259717 6519434 13038868