Base | Representation |
---|---|
bin | 1111100100011… |
… | …11101110011101 |
3 | 100002202210011010 |
4 | 13302033232131 |
5 | 231414042000 |
6 | 20543245433 |
7 | 3144120240 |
oct | 762175635 |
9 | 302683133 |
10 | 130612125 |
11 | 677aa906 |
12 | 378a9879 |
13 | 210a12a7 |
14 | 134bd257 |
15 | b6eed50 |
hex | 7c8fb9d |
130612125 has 32 divisors (see below), whose sum is σ = 248391936. Its totient is φ = 59707200.
The previous prime is 130612121. The next prime is 130612151. The reversal of 130612125 is 521216031.
130612125 = T47 + T48 + ... + T921.
It is not a de Polignac number, because 130612125 - 22 = 130612121 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130612121) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22254 + ... + 27503.
It is an arithmetic number, because the mean of its divisors is an integer number (7762248).
Almost surely, 2130612125 is an apocalyptic number.
130612125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130612125 is a deficient number, since it is larger than the sum of its proper divisors (117779811).
130612125 is an equidigital number, since it uses as much as digits as its factorization.
130612125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49782 (or 49772 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 21.
The square root of 130612125 is about 11428.5661830345. The cubic root of 130612125 is about 507.3735600304.
Adding to 130612125 its reverse (521216031), we get a palindrome (651828156).
It can be divided in two parts, 1306 and 12125, that added together give a palindrome (13431).
The spelling of 130612125 in words is "one hundred thirty million, six hundred twelve thousand, one hundred twenty-five".
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