Base | Representation |
---|---|
bin | 11100100100100101… |
… | …111101000000100011 |
3 | 2221012001101102211122 |
4 | 130210211331000203 |
5 | 1000312221400232 |
6 | 22032115002455 |
7 | 2134150435151 |
oct | 344445750043 |
9 | 87161342748 |
10 | 30678700067 |
11 | 12013365484 |
12 | 5b4229942b |
13 | 2b7bb87482 |
14 | 16b063a3d1 |
15 | be84e0312 |
hex | 72497d023 |
30678700067 has 2 divisors, whose sum is σ = 30678700068. Its totient is φ = 30678700066.
The previous prime is 30678700027. The next prime is 30678700069. The reversal of 30678700067 is 76000787603.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30678700067 is a prime.
Together with 30678700069, 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 (30678700069) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339350033 + 15339350034.
It is an arithmetic number, because the mean of its divisors is an integer number (15339350034).
Almost surely, 230678700067 is an apocalyptic number.
30678700067 is a deficient number, since it is larger than the sum of its proper divisors (1).
30678700067 is an equidigital number, since it uses as much as digits as its factorization.
30678700067 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 296352, while the sum is 44.
The spelling of 30678700067 in words is "thirty billion, six hundred seventy-eight million, seven hundred thousand, sixty-seven".
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