Base | Representation |
---|---|
bin | 11110011100101101101 |
3 | 1212200122101 |
4 | 3303211231 |
5 | 223411431 |
6 | 33215101 |
7 | 11323603 |
oct | 3634555 |
9 | 1780571 |
10 | 997741 |
11 | 621688 |
12 | 401491 |
13 | 28c1a4 |
14 | 1bd873 |
15 | 14a961 |
hex | f396d |
997741 has 2 divisors, whose sum is σ = 997742. Its totient is φ = 997740.
The previous prime is 997739. The next prime is 997751. The reversal of 997741 is 147799.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 570025 + 427716 = 755^2 + 654^2 .
It is an emirp because it is prime and its reverse (147799) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 997741 - 21 = 997739 is a prime.
Together with 997739, it forms a pair of twin primes.
It is a nialpdrome in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 997741.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (997751) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498870 + 498871.
It is an arithmetic number, because the mean of its divisors is an integer number (498871).
2997741 is an apocalyptic number.
It is an amenable number.
997741 is a deficient number, since it is larger than the sum of its proper divisors (1).
997741 is an equidigital number, since it uses as much as digits as its factorization.
997741 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 15876, while the sum is 37.
The square root of 997741 is about 998.8698613934. The cubic root of 997741 is about 99.9246432278.
The spelling of 997741 in words is "nine hundred ninety-seven thousand, seven hundred forty-one".
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