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222830244 = 223372134179
BaseRepresentation
bin11010100100000…
…01111010100100
3120112021221122000
431102001322210
5424021031434
634040005300
75344011600
oct1522017244
9515257560
10222830244
1110486672a
1262760830
133721ba20
1421846500
1514868b99
hexd481ea4

222830244 has 288 divisors, whose sum is σ = 750758400. Its totient is φ = 56609280.

The previous prime is 222830227. The next prime is 222830269. The reversal of 222830244 is 442038222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2820597 + ... + 2820675.

It is an arithmetic number, because the mean of its divisors is an integer number (2606800).

Almost surely, 2222830244 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 222830244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375379200).

222830244 is an abundant number, since it is smaller than the sum of its proper divisors (527928156).

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

222830244 is a wasteful number, since it uses less digits than its factorization.

222830244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 222830244 is about 14927.4995896835. The cubic root of 222830244 is about 606.2587856593.

Adding to 222830244 its reverse (442038222), we get a palindrome (664868466).

The spelling of 222830244 in words is "two hundred twenty-two million, eight hundred thirty thousand, two hundred forty-four".