Base | Representation |
---|---|
bin | 10011100111011001… |
… | …001001111010100001 |
3 | 2000100211212110202210 |
4 | 103213121021322201 |
5 | 321113333002124 |
6 | 13401543432333 |
7 | 1343636022441 |
oct | 234731117241 |
9 | 60324773683 |
10 | 21062000289 |
11 | 8a28a4a610 |
12 | 40b97556a9 |
13 | 1ca8712385 |
14 | 103b372121 |
15 | 8340e7a29 |
hex | 4e7649ea1 |
21062000289 has 64 divisors (see below), whose sum is σ = 33737840640. Its totient is φ = 11537095680.
The previous prime is 21062000257. The next prime is 21062000291. The reversal of 21062000289 is 98200026012.
It is not a de Polignac number, because 21062000289 - 25 = 21062000257 is a prime.
It is not an unprimeable number, because it can be changed into a prime (21062000209) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6242607 + ... + 6245979.
It is an arithmetic number, because the mean of its divisors is an integer number (527153760).
Almost surely, 221062000289 is an apocalyptic number.
It is an amenable number.
21062000289 is a deficient number, since it is larger than the sum of its proper divisors (12675840351).
21062000289 is a wasteful number, since it uses less digits than its factorization.
With its predecessor (21062000288) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (3862).
21062000289 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3862.
The product of its (nonzero) digits is 3456, while the sum is 30.
The spelling of 21062000289 in words is "twenty-one billion, sixty-two million, two hundred eighty-nine", and thus it is an aban number.
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