Base | Representation |
---|---|
bin | 111001011000… |
… | …0111110111001 |
3 | 2002121110221002 |
4 | 1302300332321 |
5 | 30200210144 |
6 | 2552454345 |
7 | 513501341 |
oct | 162607671 |
9 | 62543832 |
10 | 30085049 |
11 | 15a89385 |
12 | a0aa3b5 |
13 | 6304907 |
14 | 3dd1d21 |
15 | 299414e |
hex | 1cb0fb9 |
30085049 has 2 divisors, whose sum is σ = 30085050. Its totient is φ = 30085048.
The previous prime is 30085009. The next prime is 30085051. The reversal of 30085049 is 94058003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 21715600 + 8369449 = 4660^2 + 2893^2 .
It is a cyclic number.
It is not a de Polignac number, because 30085049 - 28 = 30084793 is a prime.
It is a super-2 number, since 2×300850492 = 1810220346664802, which contains 22 as substring.
Together with 30085051, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30085009) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15042524 + 15042525.
It is an arithmetic number, because the mean of its divisors is an integer number (15042525).
Almost surely, 230085049 is an apocalyptic number.
It is an amenable number.
30085049 is a deficient number, since it is larger than the sum of its proper divisors (1).
30085049 is an equidigital number, since it uses as much as digits as its factorization.
30085049 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4320, while the sum is 29.
The square root of 30085049 is about 5484.9839562208. The cubic root of 30085049 is about 311.0166035738.
The spelling of 30085049 in words is "thirty million, eighty-five thousand, forty-nine".
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