Base | Representation |
---|---|
bin | 1000100111101111010 |
3 | 112100111121 |
4 | 1010331322 |
5 | 33014430 |
6 | 10015454 |
7 | 2254405 |
oct | 1047572 |
9 | 470447 |
10 | 282490 |
11 | 18326a |
12 | 11758a |
13 | 9b770 |
14 | 74d3c |
15 | 58a7a |
hex | 44f7a |
282490 has 32 divisors (see below), whose sum is σ = 571536. Its totient is φ = 99840.
The previous prime is 282487. The next prime is 282493. The reversal of 282490 is 94282.
It is an interprime number because it is at equal distance from previous prime (282487) and next prime (282493).
It can be written as a sum of positive squares in 8 ways, for example, as 33489 + 249001 = 183^2 + 499^2 .
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (282493) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5304 + ... + 5356.
2282490 is an apocalyptic number.
282490 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
282490 is a wasteful number, since it uses less digits than its factorization.
282490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114.
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 282490 is about 531.4978833448. The cubic root of 282490 is about 65.6146816733.
The spelling of 282490 in words is "two hundred eighty-two thousand, four hundred ninety".
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