Base | Representation |
---|---|
bin | 10010110100000001… |
… | …101110010101110111 |
3 | 1221010210021111111011 |
4 | 102310001232111313 |
5 | 312332224020043 |
6 | 13140240453051 |
7 | 1313403015514 |
oct | 226401562567 |
9 | 57123244434 |
10 | 20200220023 |
11 | 8626552315 |
12 | 3ab901a187 |
13 | 1b9c00b119 |
14 | d98b2430b |
15 | 7d361a59d |
hex | 4b406e577 |
20200220023 has 4 divisors (see below), whose sum is σ = 20396338768. Its totient is φ = 20004101280.
The previous prime is 20200220009. The next prime is 20200220057. The reversal of 20200220023 is 32002200202.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20200220023 - 29 = 20200219511 is a prime.
It is a super-2 number, since 2×202002200232 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20200219985 and 20200220012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20200220323) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98059218 + ... + 98059423.
It is an arithmetic number, because the mean of its divisors is an integer number (5099084692).
Almost surely, 220200220023 is an apocalyptic number.
20200220023 is a deficient number, since it is larger than the sum of its proper divisors (196118745).
20200220023 is a wasteful number, since it uses less digits than its factorization.
20200220023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 196118744.
The product of its (nonzero) digits is 96, while the sum is 13.
Adding to 20200220023 its reverse (32002200202), we get a palindrome (52202420225).
The spelling of 20200220023 in words is "twenty billion, two hundred million, two hundred twenty thousand, twenty-three".
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