Base | Representation |
---|---|
bin | 11100101101111101… |
… | …111000100111011001 |
3 | 2221121000022111112102 |
4 | 130231331320213121 |
5 | 1001123001442343 |
6 | 22055453453145 |
7 | 2141100256502 |
oct | 345575704731 |
9 | 87530274472 |
10 | 30835968473 |
11 | 12094111572 |
12 | 5b86aa11b5 |
13 | 2ba562c7bb |
14 | 16c7497ba9 |
15 | c072083b8 |
hex | 72df789d9 |
30835968473 has 2 divisors, whose sum is σ = 30835968474. Its totient is φ = 30835968472.
The previous prime is 30835968391. The next prime is 30835968487. The reversal of 30835968473 is 37486953803.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30494938384 + 341030089 = 174628^2 + 18467^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30835968473 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (30835968073) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15417984236 + 15417984237.
It is an arithmetic number, because the mean of its divisors is an integer number (15417984237).
Almost surely, 230835968473 is an apocalyptic number.
It is an amenable number.
30835968473 is a deficient number, since it is larger than the sum of its proper divisors (1).
30835968473 is an equidigital number, since it uses as much as digits as its factorization.
30835968473 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 13063680, while the sum is 56.
The spelling of 30835968473 in words is "thirty billion, eight hundred thirty-five million, nine hundred sixty-eight thousand, four hundred seventy-three".
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