Base | Representation |
---|---|
bin | 1101001101000101… |
… | …10001011001111001 |
3 | 200022001101121120102 |
4 | 12212202301121321 |
5 | 104004302203114 |
6 | 3131240005145 |
7 | 340450234136 |
oct | 64642613171 |
9 | 20261347512 |
10 | 7089100409 |
11 | 3008681076 |
12 | 145a1607b5 |
13 | 88c901591 |
14 | 4b371158d |
15 | 2b75692de |
hex | 1a68b1679 |
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".
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