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12988379 = 73181983
BaseRepresentation
bin110001100010…
…111111011011
3220102212201002
4301202333123
511311112004
61142215215
7215253665
oct61427733
926385632
1012988379
1173713a8
12442450b
1328c9b41
141a21535
15121861e
hexc62fdb

12988379 has 8 divisors (see below), whose sum is σ = 13252512. Its totient is φ = 12726720.

The previous prime is 12988363. The next prime is 12988427. The reversal of 12988379 is 97388921.

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 12988379 - 24 = 12988363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12988579) 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, 12722 + ... + 13704.

It is an arithmetic number, because the mean of its divisors is an integer number (1656564).

Almost surely, 212988379 is an apocalyptic number.

12988379 is a deficient number, since it is larger than the sum of its proper divisors (264133).

12988379 is an equidigital number, since it uses as much as digits as its factorization.

12988379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its digits is 217728, while the sum is 47.

The square root of 12988379 is about 3603.9393724090. The cubic root of 12988379 is about 235.0633841399.

The spelling of 12988379 in words is "twelve million, nine hundred eighty-eight thousand, three hundred seventy-nine".

Divisors: 1 73 181 983 13213 71759 177923 12988379