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13868744 = 2310316831
BaseRepresentation
bin110100111001…
…111011001000
3222002121100012
4310321323020
512022244434
61213131052
7225611441
oct64717310
928077305
1013868744
11791287a
124789a88
132b47776
141bb02c8
15133e3ce
hexd39ec8

13868744 has 16 divisors (see below), whose sum is σ = 26257920. Its totient is φ = 6866640.

The previous prime is 13868737. The next prime is 13868761. The reversal of 13868744 is 44786831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7592 + ... + 9239.

It is an arithmetic number, because the mean of its divisors is an integer number (1641120).

Almost surely, 213868744 is an apocalyptic number.

It is an amenable number.

13868744 is a deficient number, since it is larger than the sum of its proper divisors (12389176).

13868744 is a wasteful number, since it uses less digits than its factorization.

13868744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940 (or 16936 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 13868744 is about 3724.0762613029. The cubic root of 13868744 is about 240.2586563222.

The spelling of 13868744 in words is "thirteen million, eight hundred sixty-eight thousand, seven hundred forty-four".

Divisors: 1 2 4 8 103 206 412 824 16831 33662 67324 134648 1733593 3467186 6934372 13868744