Base | Representation |
---|---|
bin | 111010100101… |
… | …0101000010001 |
3 | 2010210110012211 |
4 | 1311022220101 |
5 | 30330330020 |
6 | 3014152121 |
7 | 522032212 |
oct | 165125021 |
9 | 63713184 |
10 | 30714385 |
11 | 16379199 |
12 | a352641 |
13 | 64951c0 |
14 | 4117409 |
15 | 2a6a85a |
hex | 1d4aa11 |
30714385 has 16 divisors (see below), whose sum is σ = 40242384. Its totient is φ = 22367232.
The previous prime is 30714349. The next prime is 30714389. The reversal of 30714385 is 58341703.
It can be written as a sum of positive squares in 8 ways, for example, as 4734976 + 25979409 = 2176^2 + 5097^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30714385 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30714389) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 1509 + ... + 7981.
It is an arithmetic number, because the mean of its divisors is an integer number (2515149).
Almost surely, 230714385 is an apocalyptic number.
It is an amenable number.
30714385 is a deficient number, since it is larger than the sum of its proper divisors (9527999).
30714385 is a wasteful number, since it uses less digits than its factorization.
30714385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6564.
The product of its (nonzero) digits is 10080, while the sum is 31.
The square root of 30714385 is about 5542.0560264220. The cubic root of 30714385 is about 313.1703285494.
The spelling of 30714385 in words is "thirty million, seven hundred fourteen thousand, three hundred eighty-five".
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