Base | Representation |
---|---|
bin | 1100110111011111… |
… | …11101011000100001 |
3 | 122211102122011110000 |
4 | 12123233331120201 |
5 | 103121422223334 |
6 | 3101250330213 |
7 | 333121045632 |
oct | 63357753041 |
9 | 18742564400 |
10 | 6908007969 |
11 | 2a254326a5 |
12 | 1409589969 |
13 | 8612373a5 |
14 | 497651889 |
15 | 2a66e7299 |
hex | 19bbfd621 |
6908007969 has 60 divisors (see below), whose sum is σ = 10660128556. Its totient is φ = 4457576448.
The previous prime is 6908007941. The next prime is 6908008057. The reversal of 6908007969 is 9697008096.
It can be written as a sum of positive squares in 6 ways, for example, as 153140625 + 6754867344 = 12375^2 + 82188^2 .
It is not a de Polignac number, because 6908007969 - 215 = 6907975201 is a prime.
It is a super-2 number, since 2×69080079692 = 95441148199535009922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6908007269) by changing a digit.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 22070157 + ... + 22070469.
Almost surely, 26908007969 is an apocalyptic number.
It is an amenable number.
6908007969 is a deficient number, since it is larger than the sum of its proper divisors (3752120587).
6908007969 is an equidigital number, since it uses as much as digits as its factorization.
6908007969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 528 (or 466 counting only the distinct ones).
The product of its (nonzero) digits is 1469664, while the sum is 54.
The square root of 6908007969 is about 83114.4269606667. The cubic root of 6908007969 is about 1904.5144698519.
The spelling of 6908007969 in words is "six billion, nine hundred eight million, seven thousand, nine hundred sixty-nine".
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