Base | Representation |
---|---|
bin | 1100110100111110… |
… | …00001011111011011 |
3 | 122202221201020102012 |
4 | 12122133001133123 |
5 | 103101004304011 |
6 | 3055211500135 |
7 | 332442521153 |
oct | 63237013733 |
9 | 18687636365 |
10 | 6886791131 |
11 | 2a14461120 |
12 | 140245764b |
13 | 859a1914c |
14 | 4948cb763 |
15 | 2a4905a8b |
hex | 19a7c17db |
6886791131 has 16 divisors (see below), whose sum is σ = 7544866560. Its totient is φ = 6234109920.
The previous prime is 6886791101. The next prime is 6886791139. The reversal of 6886791131 is 1311976886.
It is a cyclic number.
It is not a de Polignac number, because 6886791131 - 210 = 6886790107 is a prime.
It is a super-2 number, since 2×68867911312 = 94855784164040518322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 6886791131.
It is not an unprimeable number, because it can be changed into a prime (6886791139) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4360700 + ... + 4362278.
It is an arithmetic number, because the mean of its divisors is an integer number (471554160).
Almost surely, 26886791131 is an apocalyptic number.
6886791131 is a deficient number, since it is larger than the sum of its proper divisors (658075429).
6886791131 is a wasteful number, since it uses less digits than its factorization.
6886791131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3026.
The product of its digits is 435456, while the sum is 50.
The square root of 6886791131 is about 82986.6924934354. The cubic root of 6886791131 is about 1902.5626667390.
The spelling of 6886791131 in words is "six billion, eight hundred eighty-six million, seven hundred ninety-one thousand, one hundred thirty-one".
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