Base | Representation |
---|---|
bin | 10010110100001000… |
… | …100011011001011001 |
3 | 1221010220122110011001 |
4 | 102310020203121121 |
5 | 312333203311301 |
6 | 13140343105001 |
7 | 1313424152632 |
oct | 226410433131 |
9 | 57126573131 |
10 | 20202010201 |
11 | 86275652aa |
12 | 3ab9742161 |
13 | 1b9c4b6bb9 |
14 | d9906c889 |
15 | 7d3870c01 |
hex | 4b4223659 |
20202010201 has 4 divisors (see below), whose sum is σ = 20278824192. Its totient is φ = 20125196212.
The previous prime is 20202010183. The next prime is 20202010211. The reversal of 20202010201 is 10201020202.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 20202010201 - 221 = 20199913049 is a prime.
It is a super-2 number, since 2×202020102012 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20202010211) 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, 38406601 + ... + 38407126.
It is an arithmetic number, because the mean of its divisors is an integer number (5069706048).
Almost surely, 220202010201 is an apocalyptic number.
It is an amenable number.
20202010201 is a deficient number, since it is larger than the sum of its proper divisors (76813991).
20202010201 is an equidigital number, since it uses as much as digits as its factorization.
20202010201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76813990.
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 20202010201 its reverse (10201020202), we get a palindrome (30403030403).
The spelling of 20202010201 in words is "twenty billion, two hundred two million, ten thousand, two hundred one".
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