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13013232 = 243271109
BaseRepresentation
bin110001101001…
…000011110000
3220111010210120
4301221003300
511312410412
61142530240
7215416311
oct61510360
926433716
1013013232
117389041
124436980
13290824b
141a2a608
151220b8c
hexc690f0

13013232 has 20 divisors (see below), whose sum is σ = 33617640. Its totient is φ = 4337728.

The previous prime is 13013227. The next prime is 13013243. The reversal of 13013232 is 23231031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135507 + ... + 135602.

It is an arithmetic number, because the mean of its divisors is an integer number (1680882).

Almost surely, 213013232 is an apocalyptic number.

13013232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13013232 is an abundant number, since it is smaller than the sum of its proper divisors (20604408).

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

13013232 is a wasteful number, since it uses less digits than its factorization.

13013232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271120 (or 271114 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13013232 is about 3607.3857570268. The cubic root of 13013232 is about 235.2132182862.

Adding to 13013232 its reverse (23231031), we get a palindrome (36244263).

The spelling of 13013232 in words is "thirteen million, thirteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 271109 542218 813327 1084436 1626654 2168872 3253308 4337744 6506616 13013232