Base | Representation |
---|---|
bin | 111010011000… |
… | …1001001101001 |
3 | 2010121011001122 |
4 | 1310301021221 |
5 | 30314010100 |
6 | 3012025025 |
7 | 521116025 |
oct | 164611151 |
9 | 63534048 |
10 | 30610025 |
11 | 16307846 |
12 | a302175 |
13 | 6459854 |
14 | 40cb385 |
15 | 2a49985 |
hex | 1d31269 |
30610025 has 12 divisors (see below), whose sum is σ = 38314512. Its totient is φ = 24257040.
The previous prime is 30610001. The next prime is 30610043. The reversal of 30610025 is 52001603.
It is not a de Polignac number, because 30610025 - 26 = 30609961 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30609985 and 30610012.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3047 + ... + 8396.
It is an arithmetic number, because the mean of its divisors is an integer number (3192876).
Almost surely, 230610025 is an apocalyptic number.
It is an amenable number.
30610025 is a deficient number, since it is larger than the sum of its proper divisors (7704487).
30610025 is a wasteful number, since it uses less digits than its factorization.
30610025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11560 (or 11555 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 30610025 is about 5532.6327367719. The cubic root of 30610025 is about 312.8152339014.
Adding to 30610025 its reverse (52001603), we get a palindrome (82611628).
The spelling of 30610025 in words is "thirty million, six hundred ten thousand, twenty-five".
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