Base | Representation |
---|---|
bin | 111010001110… |
… | …0100010111001 |
3 | 2010102212021201 |
4 | 1310130202321 |
5 | 30303310000 |
6 | 3010134201 |
7 | 520314664 |
oct | 164344271 |
9 | 63385251 |
10 | 30525625 |
11 | 1625a399 |
12 | a281361 |
13 | 642a300 |
14 | 40a86db |
15 | 2a2e96a |
hex | 1d1c8b9 |
30525625 has 45 divisors (see below), whose sum is σ = 43877361. Its totient is φ = 21216000.
The previous prime is 30525613. The next prime is 30525637. The reversal of 30525625 is 52652503.
The square root of 30525625 is 5525.
It is a perfect power (a square), and thus also a powerful number.
It is an interprime number because it is at equal distance from previous prime (30525613) and next prime (30525637).
It can be written as a sum of positive squares in 22 ways, for example, as 26347689 + 4177936 = 5133^2 + 2044^2 .
It is not a de Polignac number, because 30525625 - 27 = 30525497 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30525593 and 30525602.
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 44 ways as a sum of consecutive naturals, for example, 1795617 + ... + 1795633.
Almost surely, 230525625 is an apocalyptic number.
30525625 is the 5525-th square number.
30525625 is the 2763-rd centered octagonal number.
It is an amenable number.
30525625 is a deficient number, since it is larger than the sum of its proper divisors (13351736).
30525625 is an equidigital number, since it uses as much as digits as its factorization.
30525625 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80 (or 35 counting only the distinct ones).
The product of its (nonzero) digits is 9000, while the sum is 28.
The cubic root of 30525625 is about 312.5274642529.
The spelling of 30525625 in words is "thirty million, five hundred twenty-five thousand, six hundred twenty-five".
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