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13103312 = 241943103
BaseRepresentation
bin110001111111…
…000011010000
3220122201100212
4301333003100
511323301222
61144503252
7216243035
oct61770320
926581325
1013103312
11743a792
12447ab28
13293a251
141a5138c
15123c6e2
hexc7f0d0

13103312 has 20 divisors (see below), whose sum is σ = 26724480. Its totient is φ = 6206688.

The previous prime is 13103303. The next prime is 13103323. The reversal of 13103312 is 21330131.

13103312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 21248 + ... + 21855.

It is an arithmetic number, because the mean of its divisors is an integer number (1336224).

Almost surely, 213103312 is an apocalyptic number.

It is an amenable number.

13103312 is an abundant number, since it is smaller than the sum of its proper divisors (13621168).

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

13103312 is a wasteful number, since it uses less digits than its factorization.

13103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43130 (or 43124 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13103312 is about 3619.8497206376. The cubic root of 13103312 is about 235.7547005957.

Adding to 13103312 its reverse (21330131), we get a palindrome (34433443).

The spelling of 13103312 in words is "thirteen million, one hundred three thousand, three hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 152 304 43103 86206 172412 344824 689648 818957 1637914 3275828 6551656 13103312