Base | Representation |
---|---|
bin | 1111100011110… |
… | …00110000011101 |
3 | 100002121000002200 |
4 | 13301320300131 |
5 | 231403034140 |
6 | 20541242113 |
7 | 3143246040 |
oct | 761706035 |
9 | 302530080 |
10 | 130518045 |
11 | 67746159 |
12 | 37863339 |
13 | 2106a518 |
14 | 13496c57 |
15 | b6d2030 |
hex | 7c78c1d |
130518045 has 48 divisors (see below), whose sum is σ = 259484160. Its totient is φ = 59450112.
The previous prime is 130518043. The next prime is 130518071. The reversal of 130518045 is 540815031.
It is not a de Polignac number, because 130518045 - 21 = 130518043 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130518041) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115041 + ... + 116169.
It is an arithmetic number, because the mean of its divisors is an integer number (5405920).
Almost surely, 2130518045 is an apocalyptic number.
130518045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130518045 is a deficient number, since it is larger than the sum of its proper divisors (128966115).
130518045 is a wasteful number, since it uses less digits than its factorization.
130518045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1514 (or 1511 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 27.
The square root of 130518045 is about 11424.4494396885. The cubic root of 130518045 is about 507.2517102659.
The spelling of 130518045 in words is "one hundred thirty million, five hundred eighteen thousand, forty-five".
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