Search a number
-
+
13904269 = 58723687
BaseRepresentation
bin110101000010…
…100110001101
3222011102001221
4311002212031
512024414034
61214003341
7226120141
oct65024615
928142057
1013904269
117937535
1247a6551
132b5a9a2
141bbd221
151349bb4
hexd4298d

13904269 has 4 divisors (see below), whose sum is σ = 13928544. Its totient is φ = 13879996.

The previous prime is 13904263. The next prime is 13904281. The reversal of 13904269 is 96240931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96240931 = 167576293.

It is a cyclic number.

It is not a de Polignac number, because 13904269 - 27 = 13904141 is a prime.

It is a super-2 number, since 2×139042692 = 386657392848722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904263) 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, 11257 + ... + 12430.

It is an arithmetic number, because the mean of its divisors is an integer number (3482136).

Almost surely, 213904269 is an apocalyptic number.

It is an amenable number.

13904269 is a deficient number, since it is larger than the sum of its proper divisors (24275).

13904269 is an equidigital number, since it uses as much as digits as its factorization.

13904269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24274.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 13904269 is about 3728.8428500005. The cubic root of 13904269 is about 240.4636234878.

The spelling of 13904269 in words is "thirteen million, nine hundred four thousand, two hundred sixty-nine".

Divisors: 1 587 23687 13904269