Base | Representation |
---|---|
bin | 1111100011101… |
… | …11101111000100 |
3 | 100002120210100200 |
4 | 13301313233010 |
5 | 231402420420 |
6 | 20541210500 |
7 | 3143230611 |
oct | 761675704 |
9 | 302523320 |
10 | 130513860 |
11 | 67742aa4 |
12 | 37860a30 |
13 | 21068649 |
14 | 13495508 |
15 | b6d0b90 |
hex | 7c77bc4 |
130513860 has 36 divisors (see below), whose sum is σ = 395892588. Its totient is φ = 34803648.
The previous prime is 130513849. The next prime is 130513919. The reversal of 130513860 is 68315031.
It can be written as a sum of positive squares in 2 ways, for example, as 46131264 + 84382596 = 6792^2 + 9186^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 362359 + ... + 362718.
Almost surely, 2130513860 is an apocalyptic number.
130513860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130513860 is an abundant number, since it is smaller than the sum of its proper divisors (265378728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130513860 is a wasteful number, since it uses less digits than its factorization.
130513860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 725092 (or 725087 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 130513860 is about 11424.2662784093. The cubic root of 130513860 is about 507.2462886118.
Adding to 130513860 its reverse (68315031), we get a palindrome (198828891).
The spelling of 130513860 in words is "one hundred thirty million, five hundred thirteen thousand, eight hundred sixty".
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