Base | Representation |
---|---|
bin | 11010000110001101000 |
3 | 1121110001000 |
4 | 3100301220 |
5 | 204331034 |
6 | 30155000 |
7 | 10161063 |
oct | 3206150 |
9 | 1543030 |
10 | 855144 |
11 | 534534 |
12 | 352a60 |
13 | 23c304 |
14 | 1838da |
15 | 11d599 |
hex | d0c68 |
855144 has 64 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 274752.
The previous prime is 855143. The next prime is 855187. The reversal of 855144 is 441558.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (855143) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7939 + ... + 8045.
It is an arithmetic number, because the mean of its divisors is an integer number (38475).
2855144 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 855144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231200).
855144 is an abundant number, since it is smaller than the sum of its proper divisors (1607256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
855144 is a wasteful number, since it uses less digits than its factorization.
855144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159 (or 149 counting only the distinct ones).
The product of its digits is 3200, while the sum is 27.
The square root of 855144 is about 924.7399634492. The cubic root of 855144 is about 94.9175276854.
It can be divided in two parts, 855 and 144, that added together give a palindrome (999).
The spelling of 855144 in words is "eight hundred fifty-five thousand, one hundred forty-four".
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