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13009512 = 233542063
BaseRepresentation
bin110001101000…
…001001101000
3220110221200210
4301220021220
511312301022
61142501120
7215402415
oct61501150
926427623
1013009512
11738626a
1244347a0
132906649
141a2910c
15121ea0c
hexc68268

13009512 has 16 divisors (see below), whose sum is σ = 32523840. Its totient is φ = 4336496.

The previous prime is 13009511. The next prime is 13009517. The reversal of 13009512 is 21590031.

It is not an unprimeable number, because it can be changed into a prime (13009511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271008 + ... + 271055.

It is an arithmetic number, because the mean of its divisors is an integer number (2032740).

Almost surely, 213009512 is an apocalyptic number.

13009512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13009512 is an abundant number, since it is smaller than the sum of its proper divisors (19514328).

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

13009512 is a wasteful number, since it uses less digits than its factorization.

13009512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542072 (or 542068 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 13009512 is about 3606.8701113292. The cubic root of 13009512 is about 235.1908032407.

Adding to 13009512 its reverse (21590031), we get a palindrome (34599543).

The spelling of 13009512 in words is "thirteen million, nine thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 542063 1084126 1626189 2168252 3252378 4336504 6504756 13009512