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13906377 = 332112441
BaseRepresentation
bin110101000011…
…000111001001
3222011111222000
4311003013021
512030001002
61214021213
7226126242
oct65030711
928144860
1013906377
117939081
1247a7809
132b5b934
141bbdcc9
15134a61c
hexd431c9

13906377 has 16 divisors (see below), whose sum is σ = 20708160. Its totient is φ = 9223200.

The previous prime is 13906349. The next prime is 13906393. The reversal of 13906377 is 77360931.

13906377 is a `hidden beast` number, since 13 + 9 + 0 + 637 + 7 = 666.

It is not a de Polignac number, because 13906377 - 28 = 13906121 is a prime.

It is a super-2 number, since 2×139063772 = 386774642532258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13906327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477 + ... + 6917.

It is an arithmetic number, because the mean of its divisors is an integer number (1294260).

Almost surely, 213906377 is an apocalyptic number.

It is an amenable number.

13906377 is a deficient number, since it is larger than the sum of its proper divisors (6801783).

13906377 is a wasteful number, since it uses less digits than its factorization.

13906377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2655 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 13906377 is about 3729.1255007039. The cubic root of 13906377 is about 240.4757749526.

The spelling of 13906377 in words is "thirteen million, nine hundred six thousand, three hundred seventy-seven".

Divisors: 1 3 9 27 211 633 1899 2441 5697 7323 21969 65907 515051 1545153 4635459 13906377