Base | Representation |
---|---|
bin | 10100111011011010000 |
3 | 1021211201010 |
4 | 2213123100 |
5 | 133421101 |
6 | 22410520 |
7 | 5554230 |
oct | 2473320 |
9 | 1254633 |
10 | 685776 |
11 | 429263 |
12 | 290a40 |
13 | 1b01b0 |
14 | 13bcc0 |
15 | d82d6 |
hex | a76d0 |
685776 has 80 divisors (see below), whose sum is σ = 2194304. Its totient is φ = 179712.
The previous prime is 685759. The next prime is 685781. The reversal of 685776 is 677586.
685776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 685776.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4290 + ... + 4446.
2685776 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 685776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097152).
685776 is an abundant number, since it is smaller than the sum of its proper divisors (1508528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
685776 is a wasteful number, since it uses less digits than its factorization.
685776 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188 (or 182 counting only the distinct ones).
The product of its digits is 70560, while the sum is 39.
The square root of 685776 is about 828.1159339126. The cubic root of 685776 is about 88.1848730491.
The spelling of 685776 in words is "six hundred eighty-five thousand, seven hundred seventy-six".
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