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12223253813 = 30739815159
BaseRepresentation
bin10110110001001000…
…00000110100110101
31011112212012122000012
423120210000310311
5200013123110223
65340522430005
7611621641331
oct133044006465
934485178005
1012223253813
115202787561
122451662305
1311ca4a1284
1483d5347c1
154b816ec78
hex2d8900d35

12223253813 has 4 divisors (see below), whose sum is σ = 12263069280. Its totient is φ = 12183438348.

The previous prime is 12223253803. The next prime is 12223253849. The reversal of 12223253813 is 31835232221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31835232221 = 132448864017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12223253813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12223253813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223253803) 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, 19907273 + ... + 19907886.

It is an arithmetic number, because the mean of its divisors is an integer number (3065767320).

Almost surely, 212223253813 is an apocalyptic number.

It is an amenable number.

12223253813 is a deficient number, since it is larger than the sum of its proper divisors (39815467).

12223253813 is an equidigital number, since it uses as much as digits as its factorization.

12223253813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39815466.

The product of its digits is 17280, while the sum is 32.

The spelling of 12223253813 in words is "twelve billion, two hundred twenty-three million, two hundred fifty-three thousand, eight hundred thirteen".

Divisors: 1 307 39815159 12223253813