Base | Representation |
---|---|
bin | 111010011000… |
… | …0001011001001 |
3 | 2010120221120111 |
4 | 1310300023021 |
5 | 30313343100 |
6 | 3011554321 |
7 | 521101252 |
oct | 164601311 |
9 | 63527514 |
10 | 30606025 |
11 | 1630483a |
12 | a2bb9a1 |
13 | 6457a98 |
14 | 40c9b29 |
15 | 2a486ba |
hex | 1d302c9 |
30606025 has 12 divisors (see below), whose sum is σ = 38021004. Its totient is φ = 24440000.
The previous prime is 30606011. The next prime is 30606047. The reversal of 30606025 is 52060603.
It can be written as a sum of positive squares in 6 ways, for example, as 5895184 + 24710841 = 2428^2 + 4971^2 .
It is not a de Polignac number, because 30606025 - 29 = 30605513 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30605987 and 30606005.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22875 + ... + 24175.
It is an arithmetic number, because the mean of its divisors is an integer number (3168417).
Almost surely, 230606025 is an apocalyptic number.
It is an amenable number.
30606025 is a deficient number, since it is larger than the sum of its proper divisors (7414979).
30606025 is a wasteful number, since it uses less digits than its factorization.
30606025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2252 (or 2247 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 22.
The square root of 30606025 is about 5532.2712334086. The cubic root of 30606025 is about 312.8016074784.
Adding to 30606025 its reverse (52060603), we get a palindrome (82666628).
The spelling of 30606025 in words is "thirty million, six hundred six thousand, twenty-five".
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