Base | Representation |
---|---|
bin | 111010000111… |
… | …1100110110001 |
3 | 2010100011120202 |
4 | 1310033212301 |
5 | 30300111000 |
6 | 3005044545 |
7 | 520004321 |
oct | 164174661 |
9 | 63304522 |
10 | 30472625 |
11 | 16223597 |
12 | a256755 |
13 | 640c151 |
14 | 4093281 |
15 | 2a1ddd5 |
hex | 1d0f9b1 |
30472625 has 8 divisors (see below), whose sum is σ = 38029992. Its totient is φ = 24378000.
The previous prime is 30472583. The next prime is 30472627. The reversal of 30472625 is 52627403.
It can be written as a sum of positive squares in 4 ways, for example, as 802816 + 29669809 = 896^2 + 5447^2 .
It is not a de Polignac number, because 30472625 - 28 = 30472369 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30472627) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121766 + ... + 122015.
It is an arithmetic number, because the mean of its divisors is an integer number (4753749).
Almost surely, 230472625 is an apocalyptic number.
It is an amenable number.
30472625 is a deficient number, since it is larger than the sum of its proper divisors (7557367).
30472625 is an equidigital number, since it uses as much as digits as its factorization.
30472625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 243796 (or 243786 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 29.
The square root of 30472625 is about 5520.2015361760. The cubic root of 30472625 is about 312.3464845980.
The spelling of 30472625 in words is "thirty million, four hundred seventy-two thousand, six hundred twenty-five".
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