| Base | Representation |
|---|---|
| bin | 110001010110010… |
| … | …000001110111101 |
| 3 | 2010200212112221200 |
| 4 | 301112100032331 |
| 5 | 3143421322440 |
| 6 | 214053050113 |
| 7 | 26342115621 |
| oct | 6126201675 |
| 9 | 2120775850 |
| 10 | 827917245 |
| 11 | 395379531 |
| 12 | 1b1326939 |
| 13 | 1026a8b7c |
| 14 | 7bd55181 |
| 15 | 4ca3dc30 |
| hex | 315903bd |
827917245 has 12 divisors (see below), whose sum is σ = 1435056636. Its totient is φ = 441555840.
The previous prime is 827917243. The next prime is 827917253. The reversal of 827917245 is 542719728.
It is a happy number.
827917245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 586705284 + 241211961 = 24222^2 + 15531^2 .
It is not a de Polignac number, because 827917245 - 21 = 827917243 is a prime.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 18398161 = 827917245 / (8 + 2 + 7 + 9 + 1 + 7 + 2 + 4 + 5).
It is a self number, because there is not a number n which added to its sum of digits gives 827917245.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (827917243) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9199036 + ... + 9199125.
It is an arithmetic number, because the mean of its divisors is an integer number (119588053).
Almost surely, 2827917245 is an apocalyptic number.
It is an amenable number.
827917245 is a deficient number, since it is larger than the sum of its proper divisors (607139391).
827917245 is a wasteful number, since it uses less digits than its factorization.
827917245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18398172 (or 18398169 counting only the distinct ones).
The product of its digits is 282240, while the sum is 45.
The square root of 827917245 is about 28773.5511364169. The cubic root of 827917245 is about 938.9929024631.
The spelling of 827917245 in words is "eight hundred twenty-seven million, nine hundred seventeen thousand, two hundred forty-five".
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