Base | Representation |
---|---|
bin | 10010110101110111… |
… | …001001010010000111 |
3 | 1221012221012100100121 |
4 | 102311313021102013 |
5 | 312413114014343 |
6 | 13143300322411 |
7 | 1314225446566 |
oct | 226567112207 |
9 | 57187170317 |
10 | 20231001223 |
11 | 8641966724 |
12 | 3b073a3407 |
13 | 1ba54c7854 |
14 | d9cc57bdd |
15 | 7d619aaed |
hex | 4b5dc9487 |
20231001223 has 2 divisors, whose sum is σ = 20231001224. Its totient is φ = 20231001222.
The previous prime is 20231001191. The next prime is 20231001251. The reversal of 20231001223 is 32210013202.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20231001223 - 25 = 20231001191 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20231001197 and 20231001206.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20231001253) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115500611 + 10115500612.
It is an arithmetic number, because the mean of its divisors is an integer number (10115500612).
Almost surely, 220231001223 is an apocalyptic number.
20231001223 is a deficient number, since it is larger than the sum of its proper divisors (1).
20231001223 is an equidigital number, since it uses as much as digits as its factorization.
20231001223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 20231001223 its reverse (32210013202), we get a palindrome (52441014425).
The spelling of 20231001223 in words is "twenty billion, two hundred thirty-one million, one thousand, two hundred twenty-three".
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