Base | Representation |
---|---|
bin | 10010110100000100… |
… | …101101001111010101 |
3 | 1221010211202020002002 |
4 | 102310010231033111 |
5 | 312332424030231 |
6 | 13140305325045 |
7 | 1313412453251 |
oct | 226404551725 |
9 | 57124666062 |
10 | 20201001941 |
11 | 8626a3682a |
12 | 3ab9336785 |
13 | 1b9c222cb3 |
14 | d98c89261 |
15 | 7d37220cb |
hex | 4b412d3d5 |
20201001941 has 2 divisors, whose sum is σ = 20201001942. Its totient is φ = 20201001940.
The previous prime is 20201001857. The next prime is 20201001971. The reversal of 20201001941 is 14910010202.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16990079716 + 3210922225 = 130346^2 + 56665^2 .
It is a cyclic number.
It is not a de Polignac number, because 20201001941 - 222 = 20196807637 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20201001971) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100500970 + 10100500971.
It is an arithmetic number, because the mean of its divisors is an integer number (10100500971).
Almost surely, 220201001941 is an apocalyptic number.
It is an amenable number.
20201001941 is a deficient number, since it is larger than the sum of its proper divisors (1).
20201001941 is an equidigital number, since it uses as much as digits as its factorization.
20201001941 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 144, while the sum is 20.
The spelling of 20201001941 in words is "twenty billion, two hundred one million, one thousand, nine hundred forty-one".
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