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7089100409 is a prime number
BaseRepresentation
bin1101001101000101…
…10001011001111001
3200022001101121120102
412212202301121321
5104004302203114
63131240005145
7340450234136
oct64642613171
920261347512
107089100409
113008681076
12145a1607b5
1388c901591
144b371158d
152b75692de
hex1a68b1679

7089100409 has 2 divisors, whose sum is σ = 7089100410. Its totient is φ = 7089100408.

The previous prime is 7089100397. The next prime is 7089100439. The reversal of 7089100409 is 9040019807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4019940409 + 3069160000 = 63403^2 + 55400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7089100409 is a prime.

It is not a weakly prime, because it can be changed into another prime (7089100439) 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, 3544550204 + 3544550205.

It is an arithmetic number, because the mean of its divisors is an integer number (3544550205).

Almost surely, 27089100409 is an apocalyptic number.

It is an amenable number.

7089100409 is a deficient number, since it is larger than the sum of its proper divisors (1).

7089100409 is an equidigital number, since it uses as much as digits as its factorization.

7089100409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 7089100409 is about 84196.7957169393. The cubic root of 7089100409 is about 1921.0133186403.

The spelling of 7089100409 in words is "seven billion, eighty-nine million, one hundred thousand, four hundred nine".