Base | Representation |
---|---|
bin | 11100101110001101… |
… | …100101101111111011 |
3 | 2221121022001200000212 |
4 | 130232031211233323 |
5 | 1001130030213444 |
6 | 22100122021335 |
7 | 2141150254466 |
oct | 345615455773 |
9 | 87538050025 |
10 | 30840085499 |
11 | 12096473773 |
12 | 5b8834784b |
13 | 2ba6441702 |
14 | 16c7c4a2dd |
15 | c0776d19e |
hex | 72e365bfb |
30840085499 has 2 divisors, whose sum is σ = 30840085500. Its totient is φ = 30840085498.
The previous prime is 30840085489. The next prime is 30840085511. The reversal of 30840085499 is 99458004803.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30840085499 - 24 = 30840085483 is a prime.
It is a super-2 number, since 2×308400854992 (a number of 22 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is not a weakly prime, because it can be changed into another prime (30840085439) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15420042749 + 15420042750.
It is an arithmetic number, because the mean of its divisors is an integer number (15420042750).
Almost surely, 230840085499 is an apocalyptic number.
30840085499 is a deficient number, since it is larger than the sum of its proper divisors (1).
30840085499 is an equidigital number, since it uses as much as digits as its factorization.
30840085499 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1244160, while the sum is 50.
The spelling of 30840085499 in words is "thirty billion, eight hundred forty million, eighty-five thousand, four hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •