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13904053 = 109312721
BaseRepresentation
bin110101000010…
…100010110101
3222011101202221
4311002202311
512024412203
61214002341
7226116412
oct65024265
928141687
1013904053
117937359
1247a63b1
132b5a867
141bbd109
151349abd
hexd428b5

13904053 has 4 divisors (see below), whose sum is σ = 13917868. Its totient is φ = 13890240.

The previous prime is 13904047. The next prime is 13904083. The reversal of 13904053 is 35040931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13126129 + 777924 = 3623^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 13904053 - 29 = 13903541 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904003) 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, 5268 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (3479467).

Almost surely, 213904053 is an apocalyptic number.

It is an amenable number.

13904053 is a deficient number, since it is larger than the sum of its proper divisors (13815).

13904053 is a wasteful number, since it uses less digits than its factorization.

13904053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13904053 is about 3728.8138864792. The cubic root of 13904053 is about 240.4623782968.

Adding to 13904053 its reverse (35040931), we get a palindrome (48944984).

The spelling of 13904053 in words is "thirteen million, nine hundred four thousand, fifty-three".

Divisors: 1 1093 12721 13904053