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20200212231 = 323799293989
BaseRepresentation
bin10010110100000001…
…101100011100000111
31221010210021002210120
4102310001230130013
5312332223242411
613140240353023
71313402654013
oct226401543407
957123232716
1020200212231
118626547481
123ab9015773
131b9c007704
14d98b21543
157d3618106
hex4b406c707

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".

Divisors: 1 3 23 69 79 237 929 1817 2787 3989 5451 11967 21367 64101 73391 91747 220173 275241 315131 945393 1687993 3705781 5063979 7248013 11117343 21744039 85232963 255698889 292756699 878270097 6733404077 20200212231