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13481512 = 2311239641
BaseRepresentation
bin110011011011…
…011000101000
3221100221011021
4303123120220
511422402022
61200542224
7222406462
oct63333050
927327137
1013481512
117678950
124621974
132a40435
141b0d132
1512b47c7
hexcdb628

13481512 has 32 divisors (see below), whose sum is σ = 27734400. Its totient is φ = 6092800.

The previous prime is 13481477. The next prime is 13481569. The reversal of 13481512 is 21518431.

13481512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×134815122 = 363502331612288, 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, 20712 + ... + 21352.

It is an arithmetic number, because the mean of its divisors is an integer number (866700).

Almost surely, 213481512 is an apocalyptic number.

It is an amenable number.

13481512 is an abundant number, since it is smaller than the sum of its proper divisors (14252888).

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

13481512 is a wasteful number, since it uses less digits than its factorization.

13481512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 893 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 13481512 is about 3671.7178540841. The cubic root of 13481512 is about 238.0014123213.

Adding to 13481512 its reverse (21518431), we get a palindrome (34999943).

The spelling of 13481512 in words is "thirteen million, four hundred eighty-one thousand, five hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 239 478 641 956 1282 1912 2564 2629 5128 5258 7051 10516 14102 21032 28204 56408 153199 306398 612796 1225592 1685189 3370378 6740756 13481512