Base | Representation |
---|---|
bin | 1111100000110… |
… | …00111011000110 |
3 | 100001212001122100 |
4 | 13300120323012 |
5 | 231303004020 |
6 | 20525012530 |
7 | 3140022444 |
oct | 760307306 |
9 | 301761570 |
10 | 130125510 |
11 | 674a8249 |
12 | 376b4146 |
13 | 20c60958 |
14 | 133d3b94 |
15 | b655a90 |
hex | 7c18ec6 |
130125510 has 48 divisors (see below), whose sum is σ = 339487200. Its totient is φ = 34581120.
The previous prime is 130125487. The next prime is 130125511. The reversal of 130125510 is 15521031.
130125510 is a `hidden beast` number, since 1 + 30 + 125 + 510 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130125511) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25666 + ... + 30314.
It is an arithmetic number, because the mean of its divisors is an integer number (7072650).
Almost surely, 2130125510 is an apocalyptic number.
130125510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130125510 is an abundant number, since it is smaller than the sum of its proper divisors (209361690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130125510 is a wasteful number, since it uses less digits than its factorization.
130125510 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4973 (or 4970 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 18.
The square root of 130125510 is about 11407.2569007628. The cubic root of 130125510 is about 506.7426772120.
Adding to 130125510 its reverse (15521031), we get a palindrome (145646541).
The spelling of 130125510 in words is "one hundred thirty million, one hundred twenty-five thousand, five hundred ten".
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