Base | Representation |
---|---|
bin | 11100000011111101… |
… | …000100100001101001 |
3 | 2212202220000002021122 |
4 | 130003331010201221 |
5 | 443202031041131 |
6 | 21501514145025 |
7 | 2114451140462 |
oct | 340375044151 |
9 | 85686002248 |
10 | 30131112041 |
11 | 11862255498 |
12 | 5a0aa22175 |
13 | 2ac25acaa4 |
14 | 165ba17d69 |
15 | bb53c6d7b |
hex | 703f44869 |
30131112041 has 2 divisors, whose sum is σ = 30131112042. Its totient is φ = 30131112040.
The previous prime is 30131111971. The next prime is 30131112043. The reversal of 30131112041 is 14021113103.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18603868816 + 11527243225 = 136396^2 + 107365^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30131112041 is a prime.
Together with 30131112043, 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 (30131112043) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065556020 + 15065556021.
It is an arithmetic number, because the mean of its divisors is an integer number (15065556021).
Almost surely, 230131112041 is an apocalyptic number.
It is an amenable number.
30131112041 is a deficient number, since it is larger than the sum of its proper divisors (1).
30131112041 is an equidigital number, since it uses as much as digits as its factorization.
30131112041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 30131112041 its reverse (14021113103), we get a palindrome (44152225144).
The spelling of 30131112041 in words is "thirty billion, one hundred thirty-one million, one hundred twelve thousand, forty-one".
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