Base | Representation |
---|---|
bin | 111101000100100111… |
… | …0010000110000101001 |
3 | 110112112011012002201021 |
4 | 1322021032100300221 |
5 | 4122044204024022 |
6 | 140130002052441 |
7 | 12322023053635 |
oct | 1721116206051 |
9 | 415464162637 |
10 | 131151236137 |
11 | 506914a9959 |
12 | 2150234a121 |
13 | c4a155444c |
14 | 64c2343dc5 |
15 | 3628e6a7c7 |
hex | 1e89390c29 |
131151236137 has 2 divisors, whose sum is σ = 131151236138. Its totient is φ = 131151236136.
The previous prime is 131151236129. The next prime is 131151236143. The reversal of 131151236137 is 731632151131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 98910879001 + 32240357136 = 314501^2 + 179556^2 .
It is a cyclic number.
It is not a de Polignac number, because 131151236137 - 23 = 131151236129 is a prime.
It is not a weakly prime, because it can be changed into another prime (131151236197) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65575618068 + 65575618069.
It is an arithmetic number, because the mean of its divisors is an integer number (65575618069).
Almost surely, 2131151236137 is an apocalyptic number.
It is an amenable number.
131151236137 is a deficient number, since it is larger than the sum of its proper divisors (1).
131151236137 is an equidigital number, since it uses as much as digits as its factorization.
131151236137 is an evil number, because the sum of its binary digits is even.
The product of its digits is 11340, while the sum is 34.
Adding to 131151236137 its reverse (731632151131), we get a palindrome (862783387268).
The spelling of 131151236137 in words is "one hundred thirty-one billion, one hundred fifty-one million, two hundred thirty-six thousand, one hundred thirty-seven".
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