Base | Representation |
---|---|
bin | 10010110101110011… |
… | …011010011111010011 |
3 | 1221012212100122122200 |
4 | 102311303122133103 |
5 | 312412341214443 |
6 | 13143223334243 |
7 | 1314214234152 |
oct | 226563323723 |
9 | 57185318580 |
10 | 20230023123 |
11 | 8641358882 |
12 | 3b06bb1383 |
13 | 1ba52445ab |
14 | d9ca81599 |
15 | 7d6055dd3 |
hex | 4b5cda7d3 |
20230023123 has 6 divisors (see below), whose sum is σ = 29221144524. Its totient is φ = 13486682076.
The previous prime is 20230023109. The next prime is 20230023127. The reversal of 20230023123 is 32132003202.
It is a happy number.
It is not a de Polignac number, because 20230023123 - 218 = 20229760979 is a prime.
It is a super-2 number, since 2×202300231232 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20230023096 and 20230023105.
It is not an unprimeable number, because it can be changed into a prime (20230023127) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123890165 + ... + 1123890182.
It is an arithmetic number, because the mean of its divisors is an integer number (4870190754).
Almost surely, 220230023123 is an apocalyptic number.
20230023123 is a deficient number, since it is larger than the sum of its proper divisors (8991121401).
20230023123 is a wasteful number, since it uses less digits than its factorization.
20230023123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2247780353 (or 2247780350 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 20230023123 its reverse (32132003202), we get a palindrome (52362026325).
The spelling of 20230023123 in words is "twenty billion, two hundred thirty million, twenty-three thousand, one hundred twenty-three".
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