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13908523 is a prime number
BaseRepresentation
bin110101000011…
…101000101011
3222011121220111
4311003220223
512030033043
61214035151
7226135426
oct65035053
928147814
1013908523
11793a752
1247a8ab7
132b5c8c5
141bc09bd
15134b09d
hexd43a2b

13908523 has 2 divisors, whose sum is σ = 13908524. Its totient is φ = 13908522.

The previous prime is 13908511. The next prime is 13908527. The reversal of 13908523 is 32580931.

It is a happy number.

13908523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (32580931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13908523 - 213 = 13900331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13908527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6954261 + 6954262.

It is an arithmetic number, because the mean of its divisors is an integer number (6954262).

Almost surely, 213908523 is an apocalyptic number.

13908523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13908523 is an equidigital number, since it uses as much as digits as its factorization.

13908523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 13908523 is about 3729.4132246239. The cubic root of 13908523 is about 240.4881442052.

The spelling of 13908523 in words is "thirteen million, nine hundred eight thousand, five hundred twenty-three".