Base | Representation |
---|---|
bin | 111001011110… |
… | …0000011111001 |
3 | 2002200210011200 |
4 | 1302330003321 |
5 | 30203133200 |
6 | 2553444413 |
7 | 514050543 |
oct | 162740371 |
9 | 62623150 |
10 | 30130425 |
11 | 1600a486 |
12 | a110709 |
13 | 631c470 |
14 | 4004693 |
15 | 29a2800 |
hex | 1cbc0f9 |
30130425 has 36 divisors (see below), whose sum is σ = 58123884. Its totient is φ = 14832000.
The previous prime is 30130417. The next prime is 30130439. The reversal of 30130425 is 52403103.
It can be written as a sum of positive squares in 6 ways, for example, as 56169 + 30074256 = 237^2 + 5484^2 .
It is not a de Polignac number, because 30130425 - 23 = 30130417 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30130398 and 30130407.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2226 + ... + 8075.
Almost surely, 230130425 is an apocalyptic number.
It is an amenable number.
30130425 is a deficient number, since it is larger than the sum of its proper divisors (27993459).
30130425 is a wasteful number, since it uses less digits than its factorization.
30130425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10330 (or 10322 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 30130425 is about 5489.1187817354. The cubic root of 30130425 is about 311.1728893993.
Adding to 30130425 its reverse (52403103), we get a palindrome (82533528).
The spelling of 30130425 in words is "thirty million, one hundred thirty thousand, four hundred twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •