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13311248 = 241943787
BaseRepresentation
bin110010110001…
…110100010000
3221001021121012
4302301310100
511401424443
61153150052
7221100206
oct62616420
927037535
1013311248
117571a35
12455b328
1329b0aa2
141aa7076
15127e118
hexcb1d10

13311248 has 20 divisors (see below), whose sum is σ = 27148560. Its totient is φ = 6305184.

The previous prime is 13311239. The next prime is 13311269. The reversal of 13311248 is 84211331.

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, 21590 + ... + 22197.

It is an arithmetic number, because the mean of its divisors is an integer number (1357428).

Almost surely, 213311248 is an apocalyptic number.

It is an amenable number.

13311248 is an abundant number, since it is smaller than the sum of its proper divisors (13837312).

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

13311248 is a wasteful number, since it uses less digits than its factorization.

13311248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43814 (or 43808 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 13311248 is about 3648.4583045445. The cubic root of 13311248 is about 236.9952226541.

Adding to 13311248 its reverse (84211331), we get a palindrome (97522579).

The spelling of 13311248 in words is "thirteen million, three hundred eleven thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 43787 87574 175148 350296 700592 831953 1663906 3327812 6655624 13311248