Base | Representation |
---|---|
bin | 10101100010101110… |
… | …100100000100010111 |
3 | 2012201001110012212202 |
4 | 111202232210010113 |
5 | 334333042210012 |
6 | 14343142035115 |
7 | 1446133020023 |
oct | 254256440427 |
9 | 65631405782 |
10 | 23131210007 |
11 | 989aa68494 |
12 | 4596718a9b |
13 | 224830c619 |
14 | 11960c5383 |
15 | 905acbcc2 |
hex | 562ba4117 |
23131210007 has 2 divisors, whose sum is σ = 23131210008. Its totient is φ = 23131210006.
The previous prime is 23131210001. The next prime is 23131210049. The reversal of 23131210007 is 70001213132.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23131210007 - 216 = 23131144471 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23131210001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565605003 + 11565605004.
It is an arithmetic number, because the mean of its divisors is an integer number (11565605004).
Almost surely, 223131210007 is an apocalyptic number.
23131210007 is a deficient number, since it is larger than the sum of its proper divisors (1).
23131210007 is an equidigital number, since it uses as much as digits as its factorization.
23131210007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 20.
Adding to 23131210007 its reverse (70001213132), we get a palindrome (93132423139).
The spelling of 23131210007 in words is "twenty-three billion, one hundred thirty-one million, two hundred ten thousand, seven".
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