Search a number
-
+
13904860 = 225695243
BaseRepresentation
bin110101000010…
…101111011100
3222011102212211
4311002233130
512024423420
61214010204
7226121644
oct65025734
928142784
1013904860
117937a22
1247a6964
132b5b038
141bbd524
151349e5a
hexd42bdc

13904860 has 12 divisors (see below), whose sum is σ = 29200248. Its totient is φ = 5561936.

The previous prime is 13904843. The next prime is 13904887. The reversal of 13904860 is 6840931.

It is a super-3 number, since 3×139048603 (a number of 22 digits) contains 333 as substring.

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, 347602 + ... + 347641.

It is an arithmetic number, because the mean of its divisors is an integer number (2433354).

Almost surely, 213904860 is an apocalyptic number.

13904860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13904860 is an abundant number, since it is smaller than the sum of its proper divisors (15295388).

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

13904860 is a wasteful number, since it uses less digits than its factorization.

13904860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695252 (or 695250 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13904860 is about 3728.9220962632. The cubic root of 13904860 is about 240.4670304028.

The spelling of 13904860 in words is "thirteen million, nine hundred four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 695243 1390486 2780972 3476215 6952430 13904860