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13936907 = 29480583
BaseRepresentation
bin110101001010…
…100100001011
3222020001211202
4311022210023
512031440112
61214414415
7226314245
oct65124413
928201752
1013936907
11795a006
12480140b
132b6c7ba
141bcb095
1513546c2
hexd4a90b

13936907 has 4 divisors (see below), whose sum is σ = 14417520. Its totient is φ = 13456296.

The previous prime is 13936891. The next prime is 13936913. The reversal of 13936907 is 70963931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70963931 = 197360223.

It is a cyclic number.

It is not a de Polignac number, because 13936907 - 24 = 13936891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13936927) 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 3 ways as a sum of consecutive naturals, for example, 240263 + ... + 240320.

It is an arithmetic number, because the mean of its divisors is an integer number (3604380).

Almost surely, 213936907 is an apocalyptic number.

13936907 is a deficient number, since it is larger than the sum of its proper divisors (480613).

13936907 is an equidigital number, since it uses as much as digits as its factorization.

13936907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480612.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 13936907 is about 3733.2167094879. The cubic root of 13936907 is about 240.6516261535.

The spelling of 13936907 in words is "thirteen million, nine hundred thirty-six thousand, nine hundred seven".

Divisors: 1 29 480583 13936907