Base | Representation |
---|---|
bin | 10010101001010110… |
… | …011100001010010001 |
3 | 1220200022020022122201 |
4 | 102221112130022101 |
5 | 312000400214301 |
6 | 13110401403201 |
7 | 1306066360303 |
oct | 225126341221 |
9 | 56608208581 |
10 | 20021101201 |
11 | 8544431732 |
12 | 3a69039501 |
13 | 1b70b8535a |
14 | d7d019973 |
15 | 7c2a38201 |
hex | 4a959c291 |
20021101201 has 8 divisors (see below), whose sum is σ = 20073464064. Its totient is φ = 19968766560.
The previous prime is 20021101189. The next prime is 20021101207. The reversal of 20021101201 is 10210112002.
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 20021101201 - 217 = 20020970129 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20021101207) 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, 2695645 + ... + 2703061.
It is an arithmetic number, because the mean of its divisors is an integer number (2509183008).
Almost surely, 220021101201 is an apocalyptic number.
It is an amenable number.
20021101201 is a deficient number, since it is larger than the sum of its proper divisors (52362863).
20021101201 is an equidigital number, since it uses as much as digits as its factorization.
20021101201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14111.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 20021101201 its reverse (10210112002), we get a palindrome (30231213203).
The spelling of 20021101201 in words is "twenty billion, twenty-one million, one hundred one thousand, two hundred one".
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