Base | Representation |
---|---|
bin | 1111100000101… |
… | …11100101001111 |
3 | 100001211210002211 |
4 | 13300113211033 |
5 | 231302320030 |
6 | 20524531251 |
7 | 3140000434 |
oct | 760274517 |
9 | 301753084 |
10 | 130120015 |
11 | 674a4103 |
12 | 376b0b27 |
13 | 20c5b2bc |
14 | 133d1b8b |
15 | b65412a |
hex | 7c1794f |
130120015 has 16 divisors (see below), whose sum is σ = 159471936. Its totient is φ = 101894400.
The previous prime is 130120007. The next prime is 130120033. The reversal of 130120015 is 510021031.
It is not a de Polignac number, because 130120015 - 23 = 130120007 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130119977 and 130120004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70150 + ... + 71980.
It is an arithmetic number, because the mean of its divisors is an integer number (9966996).
Almost surely, 2130120015 is an apocalyptic number.
130120015 is a deficient number, since it is larger than the sum of its proper divisors (29351921).
130120015 is a wasteful number, since it uses less digits than its factorization.
130120015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2130.
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 130120015 is about 11407.0160427695. The cubic root of 130120015 is about 506.7355441238.
Adding to 130120015 its reverse (510021031), we get a palindrome (640141046).
It can be divided in two parts, 1301 and 20015, that added together give a square (21316 = 1462).
The spelling of 130120015 in words is "one hundred thirty million, one hundred twenty thousand, fifteen".
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