Base | Representation |
---|---|
bin | 101000001100… |
… | …1000110110111 |
3 | 1110122200120211 |
4 | 1100121012313 |
5 | 20343334414 |
6 | 2031410251 |
7 | 344062165 |
oct | 120310667 |
9 | 43580524 |
10 | 21074359 |
11 | 10994529 |
12 | 7083987 |
13 | 449b447 |
14 | 2b28235 |
15 | 1cb43c4 |
hex | 14191b7 |
21074359 has 2 divisors, whose sum is σ = 21074360. Its totient is φ = 21074358.
The previous prime is 21074353. The next prime is 21074393. The reversal of 21074359 is 95347012.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 21074359 - 217 = 20943287 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 21074359.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (21074353) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10537179 + 10537180.
It is an arithmetic number, because the mean of its divisors is an integer number (10537180).
Almost surely, 221074359 is an apocalyptic number.
21074359 is a deficient number, since it is larger than the sum of its proper divisors (1).
21074359 is an equidigital number, since it uses as much as digits as its factorization.
21074359 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 7560, while the sum is 31.
The square root of 21074359 is about 4590.6817576478. The cubic root of 21074359 is about 276.2176703019.
The spelling of 21074359 in words is "twenty-one million, seventy-four thousand, three hundred fifty-nine".
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