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13888508 = 2228312269
BaseRepresentation
bin110100111110…
…101111111100
3222010121110012
4310332233330
512023413013
61213402352
7226023164
oct64765774
928117405
1013888508
117926707
1247993b8
132b5376a
141bb75a4
1513451a8
hexd3ebfc

13888508 has 12 divisors (see below), whose sum is σ = 24392760. Its totient is φ = 6919152.

The previous prime is 13888499. The next prime is 13888519. The reversal of 13888508 is 80588831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5003 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (2032730).

Almost surely, 213888508 is an apocalyptic number.

It is an amenable number.

13888508 is a deficient number, since it is larger than the sum of its proper divisors (10504252).

13888508 is a wasteful number, since it uses less digits than its factorization.

13888508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556 (or 12554 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 13888508 is about 3726.7288605424. The cubic root of 13888508 is about 240.3727310171.

The spelling of 13888508 in words is "thirteen million, eight hundred eighty-eight thousand, five hundred eight".

Divisors: 1 2 4 283 566 1132 12269 24538 49076 3472127 6944254 13888508