Base | Representation |
---|---|
bin | 101010011100010… |
… | …101010000101101 |
3 | 1211121212220122222 |
4 | 222130111100231 |
5 | 2424242221224 |
6 | 154354045125 |
7 | 23434332245 |
oct | 5234252055 |
9 | 1747786588 |
10 | 712070189 |
11 | 335a43966 |
12 | 17a5797a5 |
13 | b46a730c |
14 | 6a7dab25 |
15 | 427a8b5e |
hex | 2a71542d |
712070189 has 2 divisors, whose sum is σ = 712070190. Its totient is φ = 712070188.
The previous prime is 712070137. The next prime is 712070243. The reversal of 712070189 is 981070217.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 406344964 + 305725225 = 20158^2 + 17485^2 .
It is an emirp because it is prime and its reverse (981070217) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 712070189 - 28 = 712069933 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (712070119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356035094 + 356035095.
It is an arithmetic number, because the mean of its divisors is an integer number (356035095).
Almost surely, 2712070189 is an apocalyptic number.
It is an amenable number.
712070189 is a deficient number, since it is larger than the sum of its proper divisors (1).
712070189 is an equidigital number, since it uses as much as digits as its factorization.
712070189 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 7056, while the sum is 35.
The square root of 712070189 is about 26684.6433178336. The cubic root of 712070189 is about 892.9783604743.
The spelling of 712070189 in words is "seven hundred twelve million, seventy thousand, one hundred eighty-nine".
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