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13936807 = 23958313
BaseRepresentation
bin110101001010…
…100010100111
3222020001201001
4311022202213
512031434212
61214414131
7226314043
oct65124247
928201631
1013936807
117959a25
124801347
132b6c741
141bcb023
151354657
hexd4a8a7

13936807 has 4 divisors (see below), whose sum is σ = 13995360. Its totient is φ = 13878256.

The previous prime is 13936799. The next prime is 13936817. The reversal of 13936807 is 70863931.

13936807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70863931 = 144748973.

It is a cyclic number.

It is not a de Polignac number, because 13936807 - 23 = 13936799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936817) 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, 28918 + ... + 29395.

It is an arithmetic number, because the mean of its divisors is an integer number (3498840).

Almost surely, 213936807 is an apocalyptic number.

13936807 is a deficient number, since it is larger than the sum of its proper divisors (58553).

13936807 is an equidigital number, since it uses as much as digits as its factorization.

13936807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58552.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13936807 is about 3733.2033161884. The cubic root of 13936807 is about 240.6510505782.

The spelling of 13936807 in words is "thirteen million, nine hundred thirty-six thousand, eight hundred seven".

Divisors: 1 239 58313 13936807