Base | Representation |
---|---|
bin | 11100001000010011… |
… | …100010111001001001 |
3 | 2212221222100220000202 |
4 | 130020103202321021 |
5 | 443324223044312 |
6 | 21513042541545 |
7 | 2116325501621 |
oct | 341023427111 |
9 | 85858326022 |
10 | 30204112457 |
11 | 1189a485812 |
12 | 5a2b3678b5 |
13 | 2b0475c1bc |
14 | 16675bb881 |
15 | bbb9e69c2 |
hex | 7084e2e49 |
30204112457 has 2 divisors, whose sum is σ = 30204112458. Its totient is φ = 30204112456.
The previous prime is 30204112403. The next prime is 30204112459. The reversal of 30204112457 is 75421140203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 21817948681 + 8386163776 = 147709^2 + 91576^2 .
It is a cyclic number.
It is not a de Polignac number, because 30204112457 - 210 = 30204111433 is a prime.
Together with 30204112459, 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 (30204112459) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15102056228 + 15102056229.
It is an arithmetic number, because the mean of its divisors is an integer number (15102056229).
Almost surely, 230204112457 is an apocalyptic number.
It is an amenable number.
30204112457 is a deficient number, since it is larger than the sum of its proper divisors (1).
30204112457 is an equidigital number, since it uses as much as digits as its factorization.
30204112457 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6720, while the sum is 29.
The spelling of 30204112457 in words is "thirty billion, two hundred four million, one hundred twelve thousand, four hundred fifty-seven".
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