Base | Representation |
---|---|
bin | 10010110100000101… |
… | …000101011110010001 |
3 | 1221010211221021020101 |
4 | 102310011011132101 |
5 | 312332440214301 |
6 | 13140311412401 |
7 | 1313413345531 |
oct | 226405053621 |
9 | 57124837211 |
10 | 20201101201 |
11 | 8626aa4366 |
12 | 3ab9384101 |
13 | 1b9c259228 |
14 | d98cb34c1 |
15 | 7d3741701 |
hex | 4b4145791 |
20201101201 has 4 divisors (see below), whose sum is σ = 20209047552. Its totient is φ = 20193154852.
The previous prime is 20201101187. The next prime is 20201101229. The reversal of 20201101201 is 10210110202.
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, and also an emirpimes, since its reverse is a distinct semiprime: 10210110202 = 2 ⋅5105055101.
It is a cyclic number.
It is not a de Polignac number, because 20201101201 - 213 = 20201093009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20201101301) 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, 3969361 + ... + 3974446.
It is an arithmetic number, because the mean of its divisors is an integer number (5052261888).
Almost surely, 220201101201 is an apocalyptic number.
It is an amenable number.
20201101201 is a deficient number, since it is larger than the sum of its proper divisors (7946351).
20201101201 is an equidigital number, since it uses as much as digits as its factorization.
20201101201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7946350.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 20201101201 its reverse (10210110202), we get a palindrome (30411211403).
Subtracting from 20201101201 its reverse (10210110202), we obtain a palindrome (9990990999).
The spelling of 20201101201 in words is "twenty billion, two hundred one million, one hundred one thousand, two hundred one".
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