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8323113221 is a prime number
BaseRepresentation
bin1111100000001100…
…01010000100000101
3210111001101221220122
413300012022010011
5114021204110341
63453521111325
7413153203133
oct76006120405
923431357818
108323113221
1135911a9175
121743488545
13a28474387
1458d576753
1533aa7294b
hex1f018a105

8323113221 has 2 divisors, whose sum is σ = 8323113222. Its totient is φ = 8323113220.

The previous prime is 8323113217. The next prime is 8323113287. The reversal of 8323113221 is 1223113238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4305328225 + 4017784996 = 65615^2 + 63386^2 .

It is a cyclic number.

It is not a de Polignac number, because 8323113221 - 22 = 8323113217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8323313221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4161556610 + 4161556611.

It is an arithmetic number, because the mean of its divisors is an integer number (4161556611).

Almost surely, 28323113221 is an apocalyptic number.

It is an amenable number.

8323113221 is a deficient number, since it is larger than the sum of its proper divisors (1).

8323113221 is an equidigital number, since it uses as much as digits as its factorization.

8323113221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 8323113221 is about 91231.0978833424. The cubic root of 8323113221 is about 2026.5715156369.

Adding to 8323113221 its reverse (1223113238), we get a palindrome (9546226459).

The spelling of 8323113221 in words is "eight billion, three hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-one".