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13530912 = 253178291
BaseRepresentation
bin110011100111…
…011100100000
3221110102220220
4303213130200
511430442122
61202003040
7223003503
oct63473440
927412826
1013530912
117701a7a
124646480
132a59a75
141b2313a
1512c425c
hexce7720

13530912 has 48 divisors (see below), whose sum is σ = 37612512. Its totient is φ = 4244480.

The previous prime is 13530893. The next prime is 13530919. The reversal of 13530912 is 21903531.

It is a happy number.

13530912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13530919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (783594).

Almost surely, 213530912 is an apocalyptic number.

13530912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13530912 is an abundant number, since it is smaller than the sum of its proper divisors (24081600).

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

13530912 is a wasteful number, since it uses less digits than its factorization.

13530912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8321 (or 8313 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 13530912 is about 3678.4387992734. The cubic root of 13530912 is about 238.2917590395.

The spelling of 13530912 in words is "thirteen million, five hundred thirty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 136 204 272 408 544 816 1632 8291 16582 24873 33164 49746 66328 99492 132656 140947 198984 265312 281894 397968 422841 563788 795936 845682 1127576 1691364 2255152 3382728 4510304 6765456 13530912