Search a number
-
+
284197120 = 285222029
BaseRepresentation
bin10000111100001…
…000000100000000
3201210202201011021
4100330020010000
51040223301440
644111155224
710020431014
oct2074100400
9653681137
10284197120
11136470559
127b215b14
1346b56b9c
1429a5c544
1519e3b84a
hex10f08100

284197120 has 36 divisors (see below), whose sum is σ = 680743980. Its totient is φ = 113678336.

The previous prime is 284197091. The next prime is 284197127. The reversal of 284197120 is 21791482.

284197120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47775744 + 236421376 = 6912^2 + 15376^2 .

It is not an unprimeable number, because it can be changed into a prime (284197127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109735 + ... + 112294.

It is an arithmetic number, because the mean of its divisors is an integer number (18909555).

Almost surely, 2284197120 is an apocalyptic number.

284197120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284197120 is an abundant number, since it is smaller than the sum of its proper divisors (396546860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284197120 is an equidigital number, since it uses as much as digits as its factorization.

284197120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222050 (or 222036 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 284197120 is about 16858.1469918850. The cubic root of 284197120 is about 657.4658870917.

The spelling of 284197120 in words is "two hundred eighty-four million, one hundred ninety-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 222029 444058 888116 1110145 1776232 2220290 3552464 4440580 7104928 8881160 14209856 17762320 28419712 35524640 56839424 71049280 142098560 284197120