Base | Representation |
---|---|
bin | 11011111100001101… |
… | …001000100100000101 |
3 | 2212102211101001100212 |
4 | 123330031020210011 |
5 | 442420240331112 |
6 | 21440551445205 |
7 | 2111312120612 |
oct | 337415104405 |
9 | 85384331325 |
10 | 30001105157 |
11 | 117a5929391 |
12 | 5993386805 |
13 | 2aa169113a |
14 | 1648655509 |
15 | ba8c96522 |
hex | 6fc348905 |
30001105157 has 2 divisors, whose sum is σ = 30001105158. Its totient is φ = 30001105156.
The previous prime is 30001105133. The next prime is 30001105223. The reversal of 30001105157 is 75150110003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 24816961156 + 5184144001 = 157534^2 + 72001^2 .
It is a cyclic number.
It is not a de Polignac number, because 30001105157 - 26 = 30001105093 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30001125157) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000552578 + 15000552579.
It is an arithmetic number, because the mean of its divisors is an integer number (15000552579).
Almost surely, 230001105157 is an apocalyptic number.
It is an amenable number.
30001105157 is a deficient number, since it is larger than the sum of its proper divisors (1).
30001105157 is an equidigital number, since it uses as much as digits as its factorization.
30001105157 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 525, while the sum is 23.
The spelling of 30001105157 in words is "thirty billion, one million, one hundred five thousand, one hundred fifty-seven".
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