Base | Representation |
---|---|
bin | 11011011111111… |
… | …11110101110101 |
3 | 121002002001210111 |
4 | 31233333311311 |
5 | 433023423234 |
6 | 34520223021 |
7 | 5500541065 |
oct | 1557776565 |
9 | 532061714 |
10 | 230686069 |
11 | 109241949 |
12 | 6530aa71 |
13 | 38a3c643 |
14 | 228cd3a5 |
15 | 153bb664 |
hex | dbffd75 |
230686069 has 2 divisors, whose sum is σ = 230686070. Its totient is φ = 230686068.
The previous prime is 230686063. The next prime is 230686091. The reversal of 230686069 is 960686032.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 170824900 + 59861169 = 13070^2 + 7737^2 .
It is a cyclic number.
It is not a de Polignac number, because 230686069 - 211 = 230684021 is a prime.
It is a super-2 number, since 2×2306860692 = 106432124861345522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230686063) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115343034 + 115343035.
It is an arithmetic number, because the mean of its divisors is an integer number (115343035).
Almost surely, 2230686069 is an apocalyptic number.
It is an amenable number.
230686069 is a deficient number, since it is larger than the sum of its proper divisors (1).
230686069 is an equidigital number, since it uses as much as digits as its factorization.
230686069 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 93312, while the sum is 40.
The square root of 230686069 is about 15188.3530706920. The cubic root of 230686069 is about 613.3011647891.
The spelling of 230686069 in words is "two hundred thirty million, six hundred eighty-six thousand, sixty-nine".
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