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12663329 = 71995213
BaseRepresentation
bin110000010011…
…101000100001
3212211100211012
4300103220201
511220211304
61131230305
7212431220
oct60235041
925740735
1012663329
11716a168
1242a8395
132814bc3
141978cb7
1511a216e
hexc13a21

12663329 has 8 divisors (see below), whose sum is σ = 15234240. Its totient is φ = 10282896.

The previous prime is 12663319. The next prime is 12663331. The reversal of 12663329 is 92336621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12663329 - 28 = 12663073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12663295 and 12663304.

It is not an unprimeable number, because it can be changed into a prime (12663319) 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, 47474 + ... + 47739.

It is an arithmetic number, because the mean of its divisors is an integer number (1904280).

Almost surely, 212663329 is an apocalyptic number.

12663329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12663329 is a deficient number, since it is larger than the sum of its proper divisors (2570911).

12663329 is an equidigital number, since it uses as much as digits as its factorization.

12663329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95239.

The product of its digits is 11664, while the sum is 32.

The square root of 12663329 is about 3558.5571514309. The cubic root of 12663329 is about 233.0858789326.

The spelling of 12663329 in words is "twelve million, six hundred sixty-three thousand, three hundred twenty-nine".

Divisors: 1 7 19 133 95213 666491 1809047 12663329