Base | Representation |
---|---|
bin | 11100101100010110… |
… | …000101111010111111 |
3 | 2221112010010011112011 |
4 | 130230112011322333 |
5 | 1001044020304444 |
6 | 22053042352051 |
7 | 2140320065503 |
oct | 345426057277 |
9 | 87463104464 |
10 | 30808759999 |
11 | 1207a818426 |
12 | 5b7995b627 |
13 | 2b9cac4304 |
14 | 16c3a14303 |
15 | c04b31734 |
hex | 72c585ebf |
30808759999 has 2 divisors, whose sum is σ = 30808760000. Its totient is φ = 30808759998.
The previous prime is 30808759981. The next prime is 30808760071. The reversal of 30808759999 is 99995780803.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30808759999 - 25 = 30808759967 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30808759199) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15404379999 + 15404380000.
It is an arithmetic number, because the mean of its divisors is an integer number (15404380000).
Almost surely, 230808759999 is an apocalyptic number.
30808759999 is a deficient number, since it is larger than the sum of its proper divisors (1).
30808759999 is an equidigital number, since it uses as much as digits as its factorization.
30808759999 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 44089920, while the sum is 67.
The spelling of 30808759999 in words is "thirty billion, eight hundred eight million, seven hundred fifty-nine thousand, nine hundred ninety-nine".
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