Base | Representation |
---|---|
bin | 1111100000101… |
… | …11110000001000 |
3 | 100001211211001122 |
4 | 13300113300020 |
5 | 231302330322 |
6 | 20524534412 |
7 | 3140002451 |
oct | 760276010 |
9 | 301754048 |
10 | 130120712 |
11 | 674a4687 |
12 | 376b1408 |
13 | 20c5b707 |
14 | 133d2128 |
15 | b654442 |
hex | 7c17c08 |
130120712 has 36 divisors (see below), whose sum is σ = 253070055. Its totient is φ = 62721216.
The previous prime is 130120691. The next prime is 130120741. The reversal of 130120712 is 217021031.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 5 ways, for example, as 128006596 + 2114116 = 11314^2 + 1454^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=8066.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1193714 + ... + 1193822.
Almost surely, 2130120712 is an apocalyptic number.
It is an amenable number.
130120712 is a deficient number, since it is larger than the sum of its proper divisors (122949343).
130120712 is an equidigital number, since it uses as much as digits as its factorization.
130120712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 298 (or 148 counting only the distinct ones).
The product of its (nonzero) digits is 84, while the sum is 17.
The square root of 130120712 is about 11407.0465941014. The cubic root of 130120712 is about 506.7364489143.
Adding to 130120712 its reverse (217021031), we get a palindrome (347141743).
The spelling of 130120712 in words is "one hundred thirty million, one hundred twenty thousand, seven hundred twelve".
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