Base | Representation |
---|---|
bin | 10000101001111111… |
… | …01000110001001001 |
3 | 212002012020211210000 |
4 | 20110333220301021 |
5 | 121303143122334 |
6 | 4035153313213 |
7 | 434411054100 |
oct | 102477506111 |
9 | 25065224700 |
10 | 8942160969 |
11 | 3879686985 |
12 | 1896865809 |
13 | ac67abb11 |
14 | 60b87b037 |
15 | 3750a4299 |
hex | 214fe8c49 |
8942160969 has 135 divisors (see below), whose sum is σ = 16610051997. Its totient is φ = 4779592272.
The previous prime is 8942160943. The next prime is 8942160977. The reversal of 8942160969 is 9690612498.
The square root of 8942160969 is 94563.
It is a perfect power (a square), and thus also a powerful number.
8942160969 is a `hidden beast` number, since 8 + 9 + 4 + 21 + 609 + 6 + 9 = 666.
It is not a de Polignac number, because 8942160969 - 213 = 8942152777 is a prime.
It is a super-2 number, since 2×89421609692 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (8942160979) by changing a digit.
It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 113191872 + ... + 113191950.
Almost surely, 28942160969 is an apocalyptic number.
8942160969 is the 94563-rd square number.
8942160969 is the 47282-nd centered octagonal number.
It is an amenable number.
8942160969 is a deficient number, since it is larger than the sum of its proper divisors (7667891028).
8942160969 is an equidigital number, since it uses as much as digits as its factorization.
8942160969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 222 (or 108 counting only the distinct ones).
The product of its (nonzero) digits is 1679616, while the sum is 54.
The cubic root of 8942160969 is about 2075.6183162609.
The spelling of 8942160969 in words is "eight billion, nine hundred forty-two million, one hundred sixty thousand, nine hundred sixty-nine".
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