Search a number
-
+
13243908 = 2231517309
BaseRepresentation
bin110010100001…
…011000000100
3220220212020010
4302201120010
511342301113
61151510220
7220366656
oct62413004
926825203
1013243908
117526387
124528370
132989242
141a8a6d6
1512691c3
hexca1604

13243908 has 24 divisors (see below), whose sum is σ = 31111360. Its totient is φ = 4384800.

The previous prime is 13243897. The next prime is 13243933. The reversal of 13243908 is 80934231.

It is a super-2 number, since 2×132439082 = 350802198224928, which contains 22 as substring.

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, 1843 + ... + 5466.

Almost surely, 213243908 is an apocalyptic number.

It is an amenable number.

13243908 is an abundant number, since it is smaller than the sum of its proper divisors (17867452).

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

13243908 is a wasteful number, since it uses less digits than its factorization.

13243908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 13243908 is about 3639.2180478779. The cubic root of 13243908 is about 236.5949034110.

The spelling of 13243908 in words is "thirteen million, two hundred forty-three thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 151 302 453 604 906 1812 7309 14618 21927 29236 43854 87708 1103659 2207318 3310977 4414636 6621954 13243908