Base | Representation |
---|---|
bin | 10001000001110… |
… | …101110011010110 |
3 | 201220120211010100 |
4 | 101001311303112 |
5 | 1041114221230 |
6 | 44203234530 |
7 | 10036240404 |
oct | 2101656326 |
9 | 656524110 |
10 | 285695190 |
11 | 1372a4030 |
12 | 7b818a46 |
13 | 4725ca11 |
14 | 29d2c474 |
15 | 1a135660 |
hex | 11075cd6 |
285695190 has 96 divisors (see below), whose sum is σ = 845634816. Its totient is φ = 66242880.
The previous prime is 285695173. The next prime is 285695219. The reversal of 285695190 is 91596582.
Together with 559939625 it forms a betrothed pair.
It is a super-2 number, since 2×2856951902 = 163243483178272200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16497 + ... + 29043.
It is an arithmetic number, because the mean of its divisors is an integer number (8808696).
Almost surely, 2285695190 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 285695190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422817408).
285695190 is an abundant number, since it is smaller than the sum of its proper divisors (559939626).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285695190 is a wasteful number, since it uses less digits than its factorization.
285695190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12594 (or 12591 counting only the distinct ones).
The product of its (nonzero) digits is 194400, while the sum is 45.
The square root of 285695190 is about 16902.5202262858. The cubic root of 285695190 is about 658.6190824191.
The spelling of 285695190 in words is "two hundred eighty-five million, six hundred ninety-five thousand, one hundred ninety".
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