Base | Representation |
---|---|
bin | 1111100000010… |
… | …11100011000101 |
3 | 100001202021111021 |
4 | 13300023203011 |
5 | 231244230400 |
6 | 20523511141 |
7 | 3136403641 |
oct | 760134305 |
9 | 301667437 |
10 | 130070725 |
11 | 67470074 |
12 | 376884b1 |
13 | 20c41a35 |
14 | 133bbc21 |
15 | b64471a |
hex | 7c0b8c5 |
130070725 has 12 divisors (see below), whose sum is σ = 165648004. Its totient is φ = 101243520.
The previous prime is 130070719. The next prime is 130070747. The reversal of 130070725 is 527070031.
It can be written as a sum of positive squares in 6 ways, for example, as 315844 + 129754881 = 562^2 + 11391^2 .
It is not a de Polignac number, because 130070725 - 25 = 130070693 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 130070725.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69384 + ... + 71233.
Almost surely, 2130070725 is an apocalyptic number.
It is an amenable number.
130070725 is a deficient number, since it is larger than the sum of its proper divisors (35577279).
130070725 is a wasteful number, since it uses less digits than its factorization.
130070725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 140664 (or 140659 counting only the distinct ones).
The product of its (nonzero) digits is 1470, while the sum is 25.
The square root of 130070725 is about 11404.8553256935. The cubic root of 130070725 is about 506.6715515361.
The spelling of 130070725 in words is "one hundred thirty million, seventy thousand, seven hundred twenty-five".
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