Base | Representation |
---|---|
bin | 10010101001010010… |
… | …010100111110110111 |
3 | 1220200020012112221121 |
4 | 102221102110332313 |
5 | 312000111220343 |
6 | 13110322324411 |
7 | 1306054250434 |
oct | 225122247667 |
9 | 56606175847 |
10 | 20020023223 |
11 | 8543865842 |
12 | 3a687b9707 |
13 | 1b708987b5 |
14 | d7cc18b8b |
15 | 7c28c3aed |
hex | 4a9494fb7 |
20020023223 has 8 divisors (see below), whose sum is σ = 20053256400. Its totient is φ = 19986814848.
The previous prime is 20020023197. The next prime is 20020023253. The reversal of 20020023223 is 32232002002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20020023223 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20020023197 and 20020023206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020023253) 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 7 ways as a sum of consecutive naturals, for example, 2236665 + ... + 2245597.
It is an arithmetic number, because the mean of its divisors is an integer number (2506657050).
Almost surely, 220020023223 is an apocalyptic number.
20020023223 is a deficient number, since it is larger than the sum of its proper divisors (33233177).
20020023223 is an equidigital number, since it uses as much as digits as its factorization.
20020023223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12401.
The product of its (nonzero) digits is 288, while the sum is 16.
Adding to 20020023223 its reverse (32232002002), we get a palindrome (52252025225).
The spelling of 20020023223 in words is "twenty billion, twenty million, twenty-three thousand, two hundred twenty-three".
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