Base | Representation |
---|---|
bin | 10010110100001000… |
… | …100101110101101001 |
3 | 1221010220122221212102 |
4 | 102310020211311221 |
5 | 312333204121301 |
6 | 13140343223145 |
7 | 1313424224036 |
oct | 226410456551 |
9 | 57126587772 |
10 | 20202020201 |
11 | 8627571870 |
12 | 3ab9747ab5 |
13 | 1b9c4bb60c |
14 | d9907238d |
15 | 7d3873b6b |
hex | 4b4225d69 |
20202020201 has 8 divisors (see below), whose sum is σ = 22749489408. Its totient is φ = 17773038000.
The previous prime is 20202020197. The next prime is 20202020203. The reversal of 20202020201 is 10202020202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20202020201 - 22 = 20202020197 is a prime.
It is a super-3 number, since 3×202020202013 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (11).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20202020203) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29621390 + ... + 29622071.
It is an arithmetic number, because the mean of its divisors is an integer number (2843686176).
Almost surely, 220202020201 is an apocalyptic number.
It is an amenable number.
20202020201 is a deficient number, since it is larger than the sum of its proper divisors (2547469207).
20202020201 is a wasteful number, since it uses less digits than its factorization.
20202020201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59243503.
The product of its (nonzero) digits is 32, while the sum is 11.
Adding to 20202020201 its reverse (10202020202), we get a palindrome (30404040403).
Subtracting from 20202020201 its reverse (10202020202), we obtain a palindrome (9999999999).
The spelling of 20202020201 in words is "twenty billion, two hundred two million, twenty thousand, two hundred one".
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