Base | Representation |
---|---|
bin | 111010010011… |
… | …1100011011001 |
3 | 2010112011010122 |
4 | 1310213203121 |
5 | 30311230323 |
6 | 3011123025 |
7 | 520563305 |
oct | 164474331 |
9 | 63464118 |
10 | 30570713 |
11 | 16290258 |
12 | a2a3475 |
13 | 64449a4 |
14 | 40bad05 |
15 | 2a3cec8 |
hex | 1d278d9 |
30570713 has 2 divisors, whose sum is σ = 30570714. Its totient is φ = 30570712.
The previous prime is 30570691. The next prime is 30570731. The reversal of 30570713 is 31707503.
Together with next prime (30570731) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20502784 + 10067929 = 4528^2 + 3173^2 .
It is an emirp because it is prime and its reverse (31707503) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30570713 - 212 = 30566617 is a prime.
It is equal to p1891043 and since 30570713 and 1891043 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (30570413) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15285356 + 15285357.
It is an arithmetic number, because the mean of its divisors is an integer number (15285357).
Almost surely, 230570713 is an apocalyptic number.
It is an amenable number.
30570713 is a deficient number, since it is larger than the sum of its proper divisors (1).
30570713 is an equidigital number, since it uses as much as digits as its factorization.
30570713 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2205, while the sum is 26.
The square root of 30570713 is about 5529.0788563738. The cubic root of 30570713 is about 312.6812618809.
The spelling of 30570713 in words is "thirty million, five hundred seventy thousand, seven hundred thirteen".
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