Base | Representation |
---|---|
bin | 1001001011111001110100… |
… | …10110001111101100101001 |
3 | 2122112010021101002112101202 |
4 | 10211330322112033230221 |
5 | 10121430012241244311 |
6 | 110543503131253545 |
7 | 4153263015562211 |
oct | 445747226175451 |
9 | 78463241075352 |
10 | 20200210103081 |
11 | 6488951a91848 |
12 | 2322b295aa2b5 |
13 | b36b43cb6958 |
14 | 4db9a41d1241 |
15 | 2506c19ace3b |
hex | 125f3a58fb29 |
20200210103081 has 2 divisors, whose sum is σ = 20200210103082. Its totient is φ = 20200210103080.
The previous prime is 20200210103071. The next prime is 20200210103107. The reversal of 20200210103081 is 18030101200202.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13000062913600 + 7200147189481 = 3605560^2 + 2683309^2 .
It is a cyclic number.
It is not a de Polignac number, because 20200210103081 - 214 = 20200210086697 is a prime.
It is a super-2 number, since 2×202002101030812 (a number of 27 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (20200210103041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100105051540 + 10100105051541.
It is an arithmetic number, because the mean of its divisors is an integer number (10100105051541).
Almost surely, 220200210103081 is an apocalyptic number.
It is an amenable number.
20200210103081 is a deficient number, since it is larger than the sum of its proper divisors (1).
20200210103081 is an equidigital number, since it uses as much as digits as its factorization.
20200210103081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 192, while the sum is 20.
Adding to 20200210103081 its reverse (18030101200202), we get a palindrome (38230311303283).
The spelling of 20200210103081 in words is "twenty trillion, two hundred billion, two hundred ten million, one hundred three thousand, eighty-one".
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