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13904052 = 2232350377
BaseRepresentation
bin110101000010…
…100010110100
3222011101202220
4311002202310
512024412202
61214002340
7226116411
oct65024264
928141686
1013904052
117937358
1247a63b0
132b5a866
141bbd108
151349abc
hexd428b4

13904052 has 24 divisors (see below), whose sum is σ = 33854016. Its totient is φ = 4433088.

The previous prime is 13904047. The next prime is 13904083. The reversal of 13904052 is 25040931.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24913 + ... + 25464.

It is an arithmetic number, because the mean of its divisors is an integer number (1410584).

Almost surely, 213904052 is an apocalyptic number.

13904052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13904052 is an abundant number, since it is smaller than the sum of its proper divisors (19949964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13904052 is a wasteful number, since it uses less digits than its factorization.

13904052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50407 (or 50405 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 13904052 is about 3728.8137523883. The cubic root of 13904052 is about 240.4623725320.

Adding to 13904052 its reverse (25040931), we get a palindrome (38944983).

The spelling of 13904052 in words is "thirteen million, nine hundred four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 50377 100754 151131 201508 302262 604524 1158671 2317342 3476013 4634684 6952026 13904052