Base | Representation |
---|---|
bin | 1111100011110… |
… | …00111110101001 |
3 | 100002121001100022 |
4 | 13301320332221 |
5 | 231403101303 |
6 | 20541250225 |
7 | 3143251505 |
oct | 761707651 |
9 | 302531308 |
10 | 130518953 |
11 | 67746904 |
12 | 37863975 |
13 | 2106aa66 |
14 | 13497305 |
15 | b6d2438 |
hex | 7c78fa9 |
130518953 has 4 divisors (see below), whose sum is σ = 133296000. Its totient is φ = 127741908.
The previous prime is 130518931. The next prime is 130518977. The reversal of 130518953 is 359815031.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359815031 = 151 ⋅2382881.
It is a cyclic number.
It is not a de Polignac number, because 130518953 - 216 = 130453417 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130514953) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388453 + ... + 1388546.
It is an arithmetic number, because the mean of its divisors is an integer number (33324000).
Almost surely, 2130518953 is an apocalyptic number.
It is an amenable number.
130518953 is a deficient number, since it is larger than the sum of its proper divisors (2777047).
130518953 is an equidigital number, since it uses as much as digits as its factorization.
130518953 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2777046.
The product of its (nonzero) digits is 16200, while the sum is 35.
The square root of 130518953 is about 11424.4891789524. The cubic root of 130518953 is about 507.2528865617.
The spelling of 130518953 in words is "one hundred thirty million, five hundred eighteen thousand, nine hundred fifty-three".
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