Base | Representation |
---|---|
bin | 111010011011… |
… | …0001010100101 |
3 | 2010122012020101 |
4 | 1310312022211 |
5 | 30320134230 |
6 | 3012304101 |
7 | 521232640 |
oct | 164661245 |
9 | 63565211 |
10 | 30630565 |
11 | 16321219 |
12 | a312031 |
13 | 6465cc4 |
14 | 40d4a57 |
15 | 2a50aca |
hex | 1d362a5 |
30630565 has 16 divisors (see below), whose sum is σ = 44219520. Its totient is φ = 19897920.
The previous prime is 30630559. The next prime is 30630599. The reversal of 30630565 is 56503603.
It is not a de Polignac number, because 30630565 - 23 = 30630557 is a prime.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 22366 + ... + 23695.
It is an arithmetic number, because the mean of its divisors is an integer number (2763720).
Almost surely, 230630565 is an apocalyptic number.
30630565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30630565 is a deficient number, since it is larger than the sum of its proper divisors (13588955).
30630565 is a wasteful number, since it uses less digits than its factorization.
30630565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46092.
The product of its (nonzero) digits is 8100, while the sum is 28.
The square root of 30630565 is about 5534.4886846031. The cubic root of 30630565 is about 312.8851868910.
The spelling of 30630565 in words is "thirty million, six hundred thirty thousand, five hundred sixty-five".
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