Base | Representation |
---|---|
bin | 10010110100000001… |
… | …101100011100000111 |
3 | 1221010210021002210120 |
4 | 102310001230130013 |
5 | 312332223242411 |
6 | 13140240353023 |
7 | 1313402654013 |
oct | 226401543407 |
9 | 57123232716 |
10 | 20200212231 |
11 | 8626547481 |
12 | 3ab9015773 |
13 | 1b9c007704 |
14 | d98b21543 |
15 | 7d3618106 |
hex | 4b406c707 |
20200212231 has 32 divisors (see below), whose sum is σ = 28498176000. Its totient is φ = 12701365248.
The previous prime is 20200212229. The next prime is 20200212251. The reversal of 20200212231 is 13221200202.
It is a happy number.
It is not a de Polignac number, because 20200212231 - 21 = 20200212229 is a prime.
It is a super-2 number, since 2×202002122312 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 20200212231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20200212251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5061985 + ... + 5065973.
It is an arithmetic number, because the mean of its divisors is an integer number (890568000).
Almost surely, 220200212231 is an apocalyptic number.
20200212231 is a deficient number, since it is larger than the sum of its proper divisors (8297963769).
20200212231 is a wasteful number, since it uses less digits than its factorization.
20200212231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5023.
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 20200212231 its reverse (13221200202), we get a palindrome (33421412433).
The spelling of 20200212231 in words is "twenty billion, two hundred million, two hundred twelve thousand, two hundred thirty-one".
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