Base | Representation |
---|---|
bin | 11001010101010000101 |
3 | 1120011122220 |
4 | 3022222011 |
5 | 203030320 |
6 | 25442553 |
7 | 10025034 |
oct | 3125205 |
9 | 1504586 |
10 | 830085 |
11 | 517723 |
12 | 340459 |
13 | 230a99 |
14 | 17871b |
15 | 115e40 |
hex | caa85 |
830085 has 8 divisors (see below), whose sum is σ = 1328160. Its totient is φ = 442704.
The previous prime is 830051. The next prime is 830099. The reversal of 830085 is 580038.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-830085 is a prime.
It is a super-2 number, since 2×8300852 = 1378082214450, which contains 22 as substring.
It is a nialpdrome in base 16.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27655 + ... + 27684.
It is an arithmetic number, because the mean of its divisors is an integer number (166020).
2830085 is an apocalyptic number.
It is an amenable number.
830085 is a deficient number, since it is larger than the sum of its proper divisors (498075).
830085 is a wasteful number, since it uses less digits than its factorization.
830085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55347.
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 830085 is about 911.0900065306. The cubic root of 830085 is about 93.9811717231.
Subtracting from 830085 its reverse (580038), we obtain a cube (250047 = 633).
It can be divided in two parts, 8300 and 85, that added together give a triangular number (8385 = T129).
The spelling of 830085 in words is "eight hundred thirty thousand, eighty-five".
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