Base | Representation |
---|---|
bin | 111010010100… |
… | …1100101000101 |
3 | 2010112120112001 |
4 | 1310221211011 |
5 | 30312012023 |
6 | 3011225301 |
7 | 520626433 |
oct | 164514505 |
9 | 63476461 |
10 | 30579013 |
11 | 16296513 |
12 | a2a8231 |
13 | 64486ba |
14 | 40bdd53 |
15 | 2a406ad |
hex | 1d29945 |
30579013 has 2 divisors, whose sum is σ = 30579014. Its totient is φ = 30579012.
The previous prime is 30579011. The next prime is 30579023. The reversal of 30579013 is 31097503.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 24137569 + 6441444 = 4913^2 + 2538^2 .
It is a cyclic number.
It is not a de Polignac number, because 30579013 - 21 = 30579011 is a prime.
Together with 30579011, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30579011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15289506 + 15289507.
It is an arithmetic number, because the mean of its divisors is an integer number (15289507).
Almost surely, 230579013 is an apocalyptic number.
It is an amenable number.
30579013 is a deficient number, since it is larger than the sum of its proper divisors (1).
30579013 is an equidigital number, since it uses as much as digits as its factorization.
30579013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2835, while the sum is 28.
The square root of 30579013 is about 5529.8293825398. The cubic root of 30579013 is about 312.7095571498.
The spelling of 30579013 in words is "thirty million, five hundred seventy-nine thousand, thirteen".
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