Base | Representation |
---|---|
bin | 110100100110000000100000… |
… | …111110110001100100001001 |
3 | 1010100000001100100120011200222 |
4 | 310212000200332301210021 |
5 | 220304242004334121413 |
6 | 2135542253530435425 |
7 | 66502422110302355 |
oct | 6446004076614411 |
9 | 1110001310504628 |
10 | 231310312020233 |
11 | 67780174984a66 |
12 | 21b395a3592b75 |
13 | 9c0b61302ba84 |
14 | 411969bd00465 |
15 | 1bb1da3231b08 |
hex | d26020fb1909 |
231310312020233 has 4 divisors (see below), whose sum is σ = 231310689299268. Its totient is φ = 231309934741200.
The previous prime is 231310312020187. The next prime is 231310312020241. The reversal of 231310312020233 is 332020213013132.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 63561266491024 + 167749045529209 = 7972532^2 + 12951797^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-231310312020233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (231310312020283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187718366 + ... + 188946567.
It is an arithmetic number, because the mean of its divisors is an integer number (57827672324817).
Almost surely, 2231310312020233 is an apocalyptic number.
It is an amenable number.
231310312020233 is a deficient number, since it is larger than the sum of its proper divisors (377279035).
231310312020233 is an equidigital number, since it uses as much as digits as its factorization.
231310312020233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 377279034.
The product of its (nonzero) digits is 3888, while the sum is 26.
Adding to 231310312020233 its reverse (332020213013132), we get a palindrome (563330525033365).
The spelling of 231310312020233 in words is "two hundred thirty-one trillion, three hundred ten billion, three hundred twelve million, twenty thousand, two hundred thirty-three".
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