Base | Representation |
---|---|
bin | 10010101111011011… |
… | …101000001000001001 |
3 | 1220221102012121221112 |
4 | 102233123220020021 |
5 | 312203004433413 |
6 | 13124444220105 |
7 | 1311445506452 |
oct | 225733501011 |
9 | 56842177845 |
10 | 20123124233 |
11 | 8596a85093 |
12 | 3a9723a635 |
13 | 1b89056904 |
14 | d8c7b6129 |
15 | 7cb98c2a8 |
hex | 4af6e8209 |
20123124233 has 8 divisors (see below), whose sum is σ = 20337626400. Its totient is φ = 19908766080.
The previous prime is 20123124223. The next prime is 20123124239. The reversal of 20123124233 is 33242132102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20123124233 - 224 = 20106347017 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20123124199 and 20123124208.
It is not an unprimeable number, because it can be changed into a prime (20123124239) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257618 + ... + 326516.
It is an arithmetic number, because the mean of its divisors is an integer number (2542203300).
Almost surely, 220123124233 is an apocalyptic number.
It is an amenable number.
20123124233 is a deficient number, since it is larger than the sum of its proper divisors (214502167).
20123124233 is an equidigital number, since it uses as much as digits as its factorization.
20123124233 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72007.
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 20123124233 its reverse (33242132102), we get a palindrome (53365256335).
The spelling of 20123124233 in words is "twenty billion, one hundred twenty-three million, one hundred twenty-four thousand, two hundred thirty-three".
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