Base | Representation |
---|---|
bin | 11100101110101001… |
… | …110110110100111111 |
3 | 2221121211000010121212 |
4 | 130232221312310333 |
5 | 1001133424323422 |
6 | 22100544515035 |
7 | 2141300246114 |
oct | 345651666477 |
9 | 87554003555 |
10 | 30847495487 |
11 | 1209a674a26 |
12 | 5b8a91ba7b |
13 | 2ba7b37413 |
14 | 16c8c1890b |
15 | c082339e2 |
hex | 72ea76d3f |
30847495487 has 2 divisors, whose sum is σ = 30847495488. Its totient is φ = 30847495486.
The previous prime is 30847495453. The next prime is 30847495507. The reversal of 30847495487 is 78459474803.
It is a strong prime.
It is an emirp because it is prime and its reverse (78459474803) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30847495487 - 26 = 30847495423 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30847425487) 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, 15423747743 + 15423747744.
It is an arithmetic number, because the mean of its divisors is an integer number (15423747744).
Almost surely, 230847495487 is an apocalyptic number.
30847495487 is a deficient number, since it is larger than the sum of its proper divisors (1).
30847495487 is an equidigital number, since it uses as much as digits as its factorization.
30847495487 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 27095040, while the sum is 59.
The spelling of 30847495487 in words is "thirty billion, eight hundred forty-seven million, four hundred ninety-five thousand, four hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •