Base | Representation |
---|---|
bin | 111100000110001000111 |
3 | 10201001021012 |
4 | 13200301013 |
5 | 1001003343 |
6 | 110112435 |
7 | 22511114 |
oct | 7406107 |
9 | 3631235 |
10 | 1969223 |
11 | 1125563 |
12 | 7ab71b |
13 | 53c429 |
14 | 39390b |
15 | 28d718 |
hex | 1e0c47 |
1969223 has 2 divisors, whose sum is σ = 1969224. Its totient is φ = 1969222.
The previous prime is 1969207. The next prime is 1969241. The reversal of 1969223 is 3229691.
It is a weak prime.
It is an emirp because it is prime and its reverse (3229691) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1969223 - 24 = 1969207 is a prime.
It is a Sophie Germain prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1969223.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1969273) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984611 + 984612.
It is an arithmetic number, because the mean of its divisors is an integer number (984612).
21969223 is an apocalyptic number.
1969223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1969223 is an equidigital number, since it uses as much as digits as its factorization.
1969223 is an evil number, because the sum of its binary digits is even.
The product of its digits is 5832, while the sum is 32.
The square root of 1969223 is about 1403.2900626741. The cubic root of 1969223 is about 125.3424847764.
The spelling of 1969223 in words is "one million, nine hundred sixty-nine thousand, two hundred twenty-three".
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