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8252989 is a prime number
BaseRepresentation
bin11111011110111000111101
3120112021222021
4133132320331
54103043424
6452520141
7130102123
oct37367075
916467867
108252989
114727658
122920051
13192c634
14114b913
15ad04e4
hex7dee3d

8252989 has 2 divisors, whose sum is σ = 8252990. Its totient is φ = 8252988.

The previous prime is 8252977. The next prime is 8253029. The reversal of 8252989 is 9892528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6100900 + 2152089 = 2470^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 8252989 - 25 = 8252957 is a prime.

It is a super-2 number, since 2×82529892 = 136223654868242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8250989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126494 + 4126495.

It is an arithmetic number, because the mean of its divisors is an integer number (4126495).

Almost surely, 28252989 is an apocalyptic number.

It is an amenable number.

8252989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8252989 is an equidigital number, since it uses as much as digits as its factorization.

8252989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 43.

The square root of 8252989 is about 2872.8015942630. The cubic root of 8252989 is about 202.0864006431.

The spelling of 8252989 in words is "eight million, two hundred fifty-two thousand, nine hundred eighty-nine".