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23221231313 = 74507736037
BaseRepresentation
bin10101101000000101…
…111101111011010001
32012221022211202220012
4111220011331323101
5340024113400223
614400115324305
71451305131560
oct255005757321
965838752805
1023221231313
119936863865
1246008b0695
132260b6b177
1411a4039bd7
1590d95ec78
hex56817ded1

23221231313 has 8 divisors (see below), whose sum is σ = 26544474432. Its totient is φ = 19899469296.

The previous prime is 23221231301. The next prime is 23221231331. The reversal of 23221231313 is 31313212232.

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

It is not a de Polignac number, because 23221231313 - 226 = 23154122449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23221231613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336470 + ... + 399567.

It is an arithmetic number, because the mean of its divisors is an integer number (3318059304).

Almost surely, 223221231313 is an apocalyptic number.

It is an amenable number.

23221231313 is a deficient number, since it is larger than the sum of its proper divisors (3323243119).

23221231313 is an equidigital number, since it uses as much as digits as its factorization.

23221231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740551.

The product of its digits is 1296, while the sum is 23.

Adding to 23221231313 its reverse (31313212232), we get a palindrome (54534443545).

The spelling of 23221231313 in words is "twenty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 7 4507 31549 736037 5152259 3317318759 23221231313