Base | Representation |
---|---|
bin | 1111100100001… |
… | …11100010101101 |
3 | 100002201002011122 |
4 | 13302013202231 |
5 | 231412003410 |
6 | 20542430325 |
7 | 3143620433 |
oct | 762074255 |
9 | 302632148 |
10 | 130578605 |
11 | 67787703 |
12 | 378923a5 |
13 | 2108bc61 |
14 | 134b0d53 |
15 | b6e4e55 |
hex | 7c878ad |
130578605 has 8 divisors (see below), whose sum is σ = 156756600. Its totient is φ = 104421376.
The previous prime is 130578593. The next prime is 130578611. The reversal of 130578605 is 506875031.
It can be written as a sum of positive squares in 4 ways, for example, as 24344356 + 106234249 = 4934^2 + 10307^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130578605 - 210 = 130577581 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18401 + ... + 24489.
It is an arithmetic number, because the mean of its divisors is an integer number (19594575).
Almost surely, 2130578605 is an apocalyptic number.
It is an amenable number.
130578605 is a deficient number, since it is larger than the sum of its proper divisors (26177995).
130578605 is an equidigital number, since it uses as much as digits as its factorization.
130578605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10383.
The product of its (nonzero) digits is 25200, while the sum is 35.
The square root of 130578605 is about 11427.0995882595. The cubic root of 130578605 is about 507.3301525830.
The spelling of 130578605 in words is "one hundred thirty million, five hundred seventy-eight thousand, six hundred five".
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