Base | Representation |
---|---|
bin | 1111100100010… |
… | …00100001110010 |
3 | 100002201021201011 |
4 | 13302020201302 |
5 | 231412121032 |
6 | 20542501134 |
7 | 3143635261 |
oct | 762104162 |
9 | 302637634 |
10 | 130582642 |
11 | 6778a743 |
12 | 378947aa |
13 | 21090a48 |
14 | 134b25d8 |
15 | b6e6247 |
hex | 7c88872 |
130582642 has 8 divisors (see below), whose sum is σ = 196889436. Its totient is φ = 64952832.
The previous prime is 130582609. The next prime is 130582643. The reversal of 130582642 is 246285031.
It can be written as a sum of positive squares in 2 ways, for example, as 113018161 + 17564481 = 10631^2 + 4191^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (130582643) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168763 + ... + 169534.
Almost surely, 2130582642 is an apocalyptic number.
130582642 is a deficient number, since it is larger than the sum of its proper divisors (66306794).
130582642 is a wasteful number, since it uses less digits than its factorization.
130582642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 338492.
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 130582642 is about 11427.2762283932. The cubic root of 130582642 is about 507.3353807767.
The spelling of 130582642 in words is "one hundred thirty million, five hundred eighty-two thousand, six hundred forty-two".
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