Base | Representation |
---|---|
bin | 10010110100000001… |
… | …110000110010001111 |
3 | 1221010210022000012211 |
4 | 102310001300302033 |
5 | 312332224330111 |
6 | 13140241011251 |
7 | 1313403056632 |
oct | 226401606217 |
9 | 57123260184 |
10 | 20200230031 |
11 | 8626559893 |
12 | 3ab9023b27 |
13 | 1b9c012847 |
14 | d98b27c19 |
15 | 7d361d521 |
hex | 4b4070c8f |
20200230031 has 4 divisors (see below), whose sum is σ = 20746182232. Its totient is φ = 19654277832.
The previous prime is 20200230007. The next prime is 20200230041. The reversal of 20200230031 is 13003200202.
It is a happy number.
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 20200230031 - 217 = 20200098959 is a prime.
It is a super-2 number, since 2×202002300312 (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 = 20200229993 and 20200230020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20200230041) 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, 272976045 + ... + 272976118.
It is an arithmetic number, because the mean of its divisors is an integer number (5186545558).
Almost surely, 220200230031 is an apocalyptic number.
20200230031 is a deficient number, since it is larger than the sum of its proper divisors (545952201).
20200230031 is an equidigital number, since it uses as much as digits as its factorization.
20200230031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 545952200.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20200230031 its reverse (13003200202), we get a palindrome (33203430233).
The spelling of 20200230031 in words is "twenty billion, two hundred million, two hundred thirty thousand, thirty-one".
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