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13903683 = 34634561
BaseRepresentation
bin110101000010…
…011101000011
3222011101021020
4311002131003
512024404213
61214000523
7226115343
oct65023503
928141236
1013903683
117937052
1247a6143
132b5a641
141bbcd23
151349923
hexd42743

13903683 has 4 divisors (see below), whose sum is σ = 18538248. Its totient is φ = 9269120.

The previous prime is 13903667. The next prime is 13903691. The reversal of 13903683 is 38630931.

13903683 is digitally balanced in base 3, 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: 38630931 = 312876977.

It is a cyclic number.

It is not a de Polignac number, because 13903683 - 24 = 13903667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13903613) 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, 2317278 + ... + 2317283.

It is an arithmetic number, because the mean of its divisors is an integer number (4634562).

Almost surely, 213903683 is an apocalyptic number.

13903683 is a deficient number, since it is larger than the sum of its proper divisors (4634565).

13903683 is an equidigital number, since it uses as much as digits as its factorization.

13903683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634564.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 13903683 is about 3728.7642725171. The cubic root of 13903683 is about 240.4602453008.

The spelling of 13903683 in words is "thirteen million, nine hundred three thousand, six hundred eighty-three".

Divisors: 1 3 4634561 13903683