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12226964749 = 23531607163
BaseRepresentation
bin10110110001100100…
…01010110100001101
31011120010012011110021
423120302022310031
5200020100332444
65341134142141
7611665325356
oct133062126415
934503164407
1012226964749
11520489164a
122452951951
1311cb1a03ac
1483dc1cd2d
154b8654584
hex2d8c8ad0d

12226964749 has 4 divisors (see below), whose sum is σ = 12758571936. Its totient is φ = 11695357564.

The previous prime is 12226964747. The next prime is 12226964753. The reversal of 12226964749 is 94746962221.

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 a cyclic number.

It is not a de Polignac number, because 12226964749 - 21 = 12226964747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12226964696 and 12226964705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226964747) 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, 265803559 + ... + 265803604.

It is an arithmetic number, because the mean of its divisors is an integer number (3189642984).

Almost surely, 212226964749 is an apocalyptic number.

It is an amenable number.

12226964749 is a deficient number, since it is larger than the sum of its proper divisors (531607187).

12226964749 is an equidigital number, since it uses as much as digits as its factorization.

12226964749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531607186.

The product of its digits is 2612736, while the sum is 52.

The spelling of 12226964749 in words is "twelve billion, two hundred twenty-six million, nine hundred sixty-four thousand, seven hundred forty-nine".

Divisors: 1 23 531607163 12226964749