Base | Representation |
---|---|
bin | 100100010000… |
… | …0101100100101 |
3 | 1022202201110212 |
4 | 1020200230211 |
5 | 14331231133 |
6 | 1515225205 |
7 | 320365523 |
oct | 110405445 |
9 | 38681425 |
10 | 19008293 |
11 | a803237 |
12 | 6448205 |
13 | 3c26c15 |
14 | 274b313 |
15 | 1a07148 |
hex | 1220b25 |
19008293 has 2 divisors, whose sum is σ = 19008294. Its totient is φ = 19008292.
The previous prime is 19008289. The next prime is 19008317. The reversal of 19008293 is 39280091.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18992164 + 16129 = 4358^2 + 127^2 .
It is a cyclic number.
It is not a de Polignac number, because 19008293 - 22 = 19008289 is a prime.
It is a super-2 number, since 2×190082932 = 722630405547698, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19008263) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9504146 + 9504147.
It is an arithmetic number, because the mean of its divisors is an integer number (9504147).
Almost surely, 219008293 is an apocalyptic number.
It is an amenable number.
19008293 is a deficient number, since it is larger than the sum of its proper divisors (1).
19008293 is an equidigital number, since it uses as much as digits as its factorization.
19008293 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3888, while the sum is 32.
The square root of 19008293 is about 4359.8501121025. The cubic root of 19008293 is about 266.8789821285.
The spelling of 19008293 in words is "nineteen million, eight thousand, two hundred ninety-three".
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