Base | Representation |
---|---|
bin | 101010111110011011001 |
3 | 2122112201012 |
4 | 11113303121 |
5 | 330030332 |
6 | 50103305 |
7 | 14653406 |
oct | 5276331 |
9 | 2575635 |
10 | 1408217 |
11 | 882018 |
12 | 57ab35 |
13 | 3a3c85 |
14 | 2892ad |
15 | 1cc3b2 |
hex | 157cd9 |
1408217 has 2 divisors, whose sum is σ = 1408218. Its totient is φ = 1408216.
The previous prime is 1408201. The next prime is 1408219. The reversal of 1408217 is 7128041.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1394761 + 13456 = 1181^2 + 116^2 .
It is a cyclic number.
It is not a de Polignac number, because 1408217 - 24 = 1408201 is a prime.
Together with 1408219, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 1408192 and 1408201.
It is not a weakly prime, because it can be changed into another prime (1408219) 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, 704108 + 704109.
It is an arithmetic number, because the mean of its divisors is an integer number (704109).
21408217 is an apocalyptic number.
It is an amenable number.
1408217 is a deficient number, since it is larger than the sum of its proper divisors (1).
1408217 is an equidigital number, since it uses as much as digits as its factorization.
1408217 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 448, while the sum is 23.
The square root of 1408217 is about 1186.6831927688. The cubic root of 1408217 is about 112.0873309090.
The spelling of 1408217 in words is "one million, four hundred eight thousand, two hundred seventeen".
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