Search a number
-
+
282228020 = 22514111401
BaseRepresentation
bin10000110100100…
…111010100110100
3201200001200001122
4100310213110310
51034222244040
644001043112
76664620134
oct2064472464
9650050048
10282228020
111353460a8
127a626498
1346617839
14296a8ac4
1519b9d1b5
hex10d27534

282228020 has 12 divisors (see below), whose sum is σ = 592678884. Its totient is φ = 112891200.

The previous prime is 282228019. The next prime is 282228043. The reversal of 282228020 is 20822282.

It can be written as a sum of positive squares in 2 ways, for example, as 83868964 + 198359056 = 9158^2 + 14084^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7055681 + ... + 7055720.

It is an arithmetic number, because the mean of its divisors is an integer number (49389907).

Almost surely, 2282228020 is an apocalyptic number.

282228020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282228020 is an abundant number, since it is smaller than the sum of its proper divisors (310450864).

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

282228020 is a wasteful number, since it uses less digits than its factorization.

282228020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14111410 (or 14111408 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 282228020 is about 16799.6434485974. The cubic root of 282228020 is about 655.9439180938.

The spelling of 282228020 in words is "two hundred eighty-two million, two hundred twenty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 14111401 28222802 56445604 70557005 141114010 282228020