Base | Representation |
---|---|
bin | 10101011100101101… |
… | …101010110001111001 |
3 | 2012110000121001220122 |
4 | 111130231222301321 |
5 | 334131224441212 |
6 | 14325135303025 |
7 | 1443466264634 |
oct | 253455526171 |
9 | 65400531818 |
10 | 23030312057 |
11 | 9849013355 |
12 | 456897aa75 |
13 | 22304431ac |
14 | 118693cc1b |
15 | 8ebceb272 |
hex | 55cb6ac79 |
23030312057 has 2 divisors, whose sum is σ = 23030312058. Its totient is φ = 23030312056.
The previous prime is 23030311987. The next prime is 23030312059. The reversal of 23030312057 is 75021303032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22657474576 + 372837481 = 150524^2 + 19309^2 .
It is a cyclic number.
It is not a de Polignac number, because 23030312057 - 216 = 23030246521 is a prime.
Together with 23030312059, 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 (23030312059) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515156028 + 11515156029.
It is an arithmetic number, because the mean of its divisors is an integer number (11515156029).
Almost surely, 223030312057 is an apocalyptic number.
It is an amenable number.
23030312057 is a deficient number, since it is larger than the sum of its proper divisors (1).
23030312057 is an equidigital number, since it uses as much as digits as its factorization.
23030312057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3780, while the sum is 26.
Adding to 23030312057 its reverse (75021303032), we get a palindrome (98051615089).
The spelling of 23030312057 in words is "twenty-three billion, thirty million, three hundred twelve thousand, fifty-seven".
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