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12968049 = 34322683
BaseRepresentation
bin110001011110…
…000001110001
3220101211211010
4301132001301
511304434144
61141541133
7215140503
oct61360161
926354733
1012968049
1173580a6
1244147a9
1328c0803
141a17d73
1512125b9
hexc5e071

12968049 has 4 divisors (see below), whose sum is σ = 17290736. Its totient is φ = 8645364.

The previous prime is 12968029. The next prime is 12968077. The reversal of 12968049 is 94086921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12968049 - 215 = 12935281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12967998 and 12968016.

It is not an unprimeable number, because it can be changed into a prime (12968029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161339 + ... + 2161344.

It is an arithmetic number, because the mean of its divisors is an integer number (4322684).

Almost surely, 212968049 is an apocalyptic number.

It is an amenable number.

12968049 is a deficient number, since it is larger than the sum of its proper divisors (4322687).

12968049 is an equidigital number, since it uses as much as digits as its factorization.

12968049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322686.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 12968049 is about 3601.1177431459. The cubic root of 12968049 is about 234.9406761375.

The spelling of 12968049 in words is "twelve million, nine hundred sixty-eight thousand, forty-nine".

Divisors: 1 3 4322683 12968049