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8969468749 is a prime number
BaseRepresentation
bin10000101101001111…
…10011101101001101
3212011002122020000021
420112213303231031
5121332140444444
64042010502141
7435162140443
oct102647635515
925132566007
108969468749
11389303869a
1218a3a34951
13acc350577
14611348b93
1537769a584
hex2169f3b4d

8969468749 has 2 divisors, whose sum is σ = 8969468750. Its totient is φ = 8969468748.

The previous prime is 8969468707. The next prime is 8969468789. The reversal of 8969468749 is 9478649698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8969415849 + 52900 = 94707^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 8969468749 - 221 = 8967371597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8969468789) 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 as a sum of consecutive naturals, namely, 4484734374 + 4484734375.

It is an arithmetic number, because the mean of its divisors is an integer number (4484734375).

Almost surely, 28969468749 is an apocalyptic number.

It is an amenable number.

8969468749 is a deficient number, since it is larger than the sum of its proper divisors (1).

8969468749 is an equidigital number, since it uses as much as digits as its factorization.

8969468749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188116992, while the sum is 70.

The square root of 8969468749 is about 94707.2792820066. The cubic root of 8969468749 is about 2077.7290263674.

The spelling of 8969468749 in words is "eight billion, nine hundred sixty-nine million, four hundred sixty-eight thousand, seven hundred forty-nine".