Base | Representation |
---|---|
bin | 11011011011110… |
… | …00010110000111 |
3 | 121001000212111022 |
4 | 31231320112013 |
5 | 432403143304 |
6 | 34500301355 |
7 | 5463040043 |
oct | 1555702607 |
9 | 531025438 |
10 | 230131079 |
11 | 1089a2982 |
12 | 650a185b |
13 | 388a6b49 |
14 | 227c7023 |
15 | 1530bebe |
hex | db78587 |
230131079 has 2 divisors, whose sum is σ = 230131080. Its totient is φ = 230131078.
The previous prime is 230131043. The next prime is 230131081. The reversal of 230131079 is 970131032.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 230131079 - 216 = 230065543 is a prime.
Together with 230131081, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230131019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115065539 + 115065540.
It is an arithmetic number, because the mean of its divisors is an integer number (115065540).
Almost surely, 2230131079 is an apocalyptic number.
230131079 is a deficient number, since it is larger than the sum of its proper divisors (1).
230131079 is an equidigital number, since it uses as much as digits as its factorization.
230131079 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1134, while the sum is 26.
The square root of 230131079 is about 15170.0718192103. The cubic root of 230131079 is about 612.8089383594.
The spelling of 230131079 in words is "two hundred thirty million, one hundred thirty-one thousand, seventy-nine".
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