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2013908 = 221338729
BaseRepresentation
bin111101011101011010100
310210022120012
413223223110
51003421113
6111055352
723055311
oct7535324
93708505
102013908
111156096
12811558
13556880
143a5d08
1529baa8
hex1ebad4

2013908 has 12 divisors (see below), whose sum is σ = 3795540. Its totient is φ = 929472.

The previous prime is 2013899. The next prime is 2013911. The reversal of 2013908 is 8093102.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 1844164 = 412^2 + 1358^2 .

It is a congruent number.

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, 19313 + ... + 19416.

It is an arithmetic number, because the mean of its divisors is an integer number (316295).

22013908 is an apocalyptic number.

It is an amenable number.

2013908 is a deficient number, since it is larger than the sum of its proper divisors (1781632).

2013908 is a wasteful number, since it uses less digits than its factorization.

2013908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38746 (or 38744 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2013908 is about 1419.1222639364. The cubic root of 2013908 is about 126.2834803210.

The spelling of 2013908 in words is "two million, thirteen thousand, nine hundred eight".

Divisors: 1 2 4 13 26 52 38729 77458 154916 503477 1006954 2013908