Base | Representation |
---|---|
bin | 111100111111110111… |
… | …1011110100101101000 |
3 | 110112010001212202212112 |
4 | 1321333233132211220 |
5 | 4121232443440433 |
6 | 140102120501452 |
7 | 12315052041152 |
oct | 1717757364550 |
9 | 415101782775 |
10 | 130992171368 |
11 | 5060a736173 |
12 | 2147901a888 |
13 | c477600596 |
14 | 64a9179ad2 |
15 | 3619eea348 |
hex | 1e7fbde968 |
130992171368 has 16 divisors (see below), whose sum is σ = 245616114660. Its totient is φ = 65494540800.
The previous prime is 130992171367. The next prime is 130992171389. The reversal of 130992171368 is 863171299031.
It can be written as a sum of positive squares in 2 ways, for example, as 81957383524 + 49034787844 = 286282^2 + 221438^2 .
It is not an unprimeable number, because it can be changed into a prime (130992171367) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218978 + ... + 556718.
Almost surely, 2130992171368 is an apocalyptic number.
It is an amenable number.
130992171368 is a deficient number, since it is larger than the sum of its proper divisors (114623943292).
130992171368 is a wasteful number, since it uses less digits than its factorization.
130992171368 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 386228 (or 386224 counting only the distinct ones).
The product of its (nonzero) digits is 489888, while the sum is 50.
The spelling of 130992171368 in words is "one hundred thirty billion, nine hundred ninety-two million, one hundred seventy-one thousand, three hundred sixty-eight".
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