Base | Representation |
---|---|
bin | 1101011001010001101… |
… | …0110001010001010101 |
3 | 210222222200121111102112 |
4 | 3112110122301101111 |
5 | 12232243031442323 |
6 | 253414525120405 |
7 | 22424445610454 |
oct | 3262432612125 |
9 | 728880544375 |
10 | 230123312213 |
11 | 8965a679553 |
12 | 387239b9105 |
13 | 189150ca982 |
14 | b1d0a68b9b |
15 | 5ebcd0a178 |
hex | 35946b1455 |
230123312213 has 2 divisors, whose sum is σ = 230123312214. Its totient is φ = 230123312212.
The previous prime is 230123312203. The next prime is 230123312231. The reversal of 230123312213 is 312213321032.
Together with next prime (230123312231) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 223107909649 + 7015402564 = 472343^2 + 83758^2 .
It is a cyclic number.
It is not a de Polignac number, because 230123312213 - 24 = 230123312197 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230123312203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115061656106 + 115061656107.
It is an arithmetic number, because the mean of its divisors is an integer number (115061656107).
Almost surely, 2230123312213 is an apocalyptic number.
It is an amenable number.
230123312213 is a deficient number, since it is larger than the sum of its proper divisors (1).
230123312213 is an equidigital number, since it uses as much as digits as its factorization.
230123312213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 23.
Adding to 230123312213 its reverse (312213321032), we get a palindrome (542336633245).
The spelling of 230123312213 in words is "two hundred thirty billion, one hundred twenty-three million, three hundred twelve thousand, two hundred thirteen".
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