Base | Representation |
---|---|
bin | 10010110100000101… |
… | …001000101010101001 |
3 | 1221010211221221011211 |
4 | 102310011020222221 |
5 | 312332441124111 |
6 | 13140311553121 |
7 | 1313413431625 |
oct | 226405105251 |
9 | 57124857154 |
10 | 20201114281 |
11 | 8627003177 |
12 | 3ab938b7a1 |
13 | 1b9c26217a |
14 | d98cb8185 |
15 | 7d3745521 |
hex | 4b4148aa9 |
20201114281 has 2 divisors, whose sum is σ = 20201114282. Its totient is φ = 20201114280.
The previous prime is 20201114267. The next prime is 20201114347. The reversal of 20201114281 is 18241110202.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19784954281 + 416160000 = 140659^2 + 20400^2 .
It is a cyclic number.
It is not a de Polignac number, because 20201114281 - 213 = 20201106089 is a prime.
It is a super-2 number, since 2×202011142812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (20201114201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100557140 + 10100557141.
It is an arithmetic number, because the mean of its divisors is an integer number (10100557141).
Almost surely, 220201114281 is an apocalyptic number.
It is an amenable number.
20201114281 is a deficient number, since it is larger than the sum of its proper divisors (1).
20201114281 is an equidigital number, since it uses as much as digits as its factorization.
20201114281 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 256, while the sum is 22.
Adding to 20201114281 its reverse (18241110202), we get a palindrome (38442224483).
The spelling of 20201114281 in words is "twenty billion, two hundred one million, one hundred fourteen thousand, two hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •