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224022220 = 22511201111
BaseRepresentation
bin11010101101001…
…00111011001100
3120121112111201021
431112210323030
5424322202340
634121323524
75360105002
oct1526447314
9517474637
10224022220
11105500234
12630365a4
1337548436
1421a76a72
1514a01e4a
hexd5a4ecc

224022220 has 12 divisors (see below), whose sum is σ = 470446704. Its totient is φ = 89608880.

The previous prime is 224022203. The next prime is 224022221. The reversal of 224022220 is 22220422.

It is a junction number, because it is equal to n+sod(n) for n = 224022194 and 224022203.

It is not an unprimeable number, because it can be changed into a prime (224022221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5600536 + ... + 5600575.

It is an arithmetic number, because the mean of its divisors is an integer number (39203892).

Almost surely, 2224022220 is an apocalyptic number.

224022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224022220 is an abundant number, since it is smaller than the sum of its proper divisors (246424484).

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

224022220 is a wasteful number, since it uses less digits than its factorization.

224022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201120 (or 11201118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 224022220 is about 14967.3718467873. The cubic root of 224022220 is about 607.3378749632.

Adding to 224022220 its reverse (22220422), we get a palindrome (246242642).

The spelling of 224022220 in words is "two hundred twenty-four million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 11201111 22402222 44804444 56005555 112011110 224022220