Base | Representation |
---|---|
bin | 1111100011101… |
… | …00011111000101 |
3 | 100002120010002200 |
4 | 13301310133011 |
5 | 231402004144 |
6 | 20541025113 |
7 | 3143144034 |
oct | 761643705 |
9 | 302503080 |
10 | 130500549 |
11 | 67733aa3 |
12 | 37855199 |
13 | 2106257a |
14 | 1349071b |
15 | b6cbc69 |
hex | 7c747c5 |
130500549 has 12 divisors (see below), whose sum is σ = 188803212. Its totient is φ = 86860800.
The previous prime is 130500521. The next prime is 130500563. The reversal of 130500549 is 945005031.
It can be written as a sum of positive squares in 2 ways, for example, as 123609924 + 6890625 = 11118^2 + 2625^2 .
It is a de Polignac number, because none of the positive numbers 2k-130500549 is a prime.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130507549) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5542 + ... + 17079.
It is an arithmetic number, because the mean of its divisors is an integer number (15733601).
Almost surely, 2130500549 is an apocalyptic number.
It is an amenable number.
130500549 is a deficient number, since it is larger than the sum of its proper divisors (58302663).
130500549 is a wasteful number, since it uses less digits than its factorization.
130500549 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23268 (or 23265 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 27.
The square root of 130500549 is about 11423.6836878478. The cubic root of 130500549 is about 507.2290434832.
The spelling of 130500549 in words is "one hundred thirty million, five hundred thousand, five hundred forty-nine".
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