Base | Representation |
---|---|
bin | 100111100101… |
… | …0000001101001 |
3 | 1110001020020212 |
4 | 1033022001221 |
5 | 20303003231 |
6 | 2020430505 |
7 | 341242625 |
oct | 117120151 |
9 | 43036225 |
10 | 20750441 |
11 | 10793128 |
12 | 6b48435 |
13 | 43b6b8a |
14 | 2a82185 |
15 | 1c4d42b |
hex | 13ca069 |
20750441 has 2 divisors, whose sum is σ = 20750442. Its totient is φ = 20750440.
The previous prime is 20750423. The next prime is 20750447. The reversal of 20750441 is 14405702.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 14600041 + 6150400 = 3821^2 + 2480^2 .
It is a cyclic number.
It is not a de Polignac number, because 20750441 - 214 = 20734057 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (20750447) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10375220 + 10375221.
It is an arithmetic number, because the mean of its divisors is an integer number (10375221).
Almost surely, 220750441 is an apocalyptic number.
It is an amenable number.
20750441 is a deficient number, since it is larger than the sum of its proper divisors (1).
20750441 is an equidigital number, since it uses as much as digits as its factorization.
20750441 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1120, while the sum is 23.
The square root of 20750441 is about 4555.2651953536. The cubic root of 20750441 is about 274.7951797189.
The spelling of 20750441 in words is "twenty million, seven hundred fifty thousand, four hundred forty-one".
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