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4222244 = 221381197
BaseRepresentation
bin10000000110110100100100
321221111211102
4100012310210
52040102434
6230255232
750613515
oct20066444
97844742
104222244
112424264
1214b7518
13b4aa90
147bca0c
1558607e
hex406d24

4222244 has 12 divisors (see below), whose sum is σ = 7957404. Its totient is φ = 1948704.

The previous prime is 4222243. The next prime is 4222277. The reversal of 4222244 is 4422224.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 2689600 = 1238^2 + 1640^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4222243) 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, 40547 + ... + 40650.

It is an arithmetic number, because the mean of its divisors is an integer number (663117).

Almost surely, 24222244 is an apocalyptic number.

It is an amenable number.

4222244 is a deficient number, since it is larger than the sum of its proper divisors (3735160).

4222244 is a wasteful number, since it uses less digits than its factorization.

4222244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81214 (or 81212 counting only the distinct ones).

The product of its digits is 1024, while the sum is 20.

The square root of 4222244 is about 2054.8099668826. The cubic root of 4222244 is about 161.6271974124.

Subtracting from 4222244 its sum of digits (20), we obtain a palindrome (4222224).

Adding to 4222244 its reverse (4422224), we get a palindrome (8644468).

The spelling of 4222244 in words is "four million, two hundred twenty-two thousand, two hundred forty-four".

Divisors: 1 2 4 13 26 52 81197 162394 324788 1055561 2111122 4222244