Base | Representation |
---|---|
bin | 111010010011… |
… | …0011101100101 |
3 | 2010111221000011 |
4 | 1310212131211 |
5 | 30311104440 |
6 | 3011050221 |
7 | 520544263 |
oct | 164463545 |
9 | 63457004 |
10 | 30566245 |
11 | 16287966 |
12 | a2a0971 |
13 | 6442948 |
14 | 40b9433 |
15 | 2a3b9ea |
hex | 1d26765 |
30566245 has 8 divisors (see below), whose sum is σ = 36756000. Its totient is φ = 24402000.
The previous prime is 30566227. The next prime is 30566251. The reversal of 30566245 is 54266503.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-30566245 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3631 + ... + 8620.
It is an arithmetic number, because the mean of its divisors is an integer number (4594500).
Almost surely, 230566245 is an apocalyptic number.
It is an amenable number.
30566245 is a deficient number, since it is larger than the sum of its proper divisors (6189755).
30566245 is a wasteful number, since it uses less digits than its factorization.
30566245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12755.
The product of its (nonzero) digits is 21600, while the sum is 31.
The square root of 30566245 is about 5528.6747960067. The cubic root of 30566245 is about 312.6660280421. Note that the first 3 decimals are identical.
The spelling of 30566245 in words is "thirty million, five hundred sixty-six thousand, two hundred forty-five".
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