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22120243 = 291993833
BaseRepresentation
bin101010001100…
…0011100110011
31112121211021021
41110120130303
521130321433
62110040311
7356006335
oct124303463
945554237
1022120243
11115392a2
1274a9097
134776502
142d1b455
151e1e22d
hex1518733

22120243 has 8 divisors (see below), whose sum is σ = 23004000. Its totient is φ = 21244608.

The previous prime is 22120229. The next prime is 22120249. The reversal of 22120243 is 34202122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22120243 - 217 = 21989171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855 + ... + 7687.

It is an arithmetic number, because the mean of its divisors is an integer number (2875500).

Almost surely, 222120243 is an apocalyptic number.

22120243 is a deficient number, since it is larger than the sum of its proper divisors (883757).

22120243 is a wasteful number, since it uses less digits than its factorization.

22120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22120243 is about 4703.2162399788. The cubic root of 22120243 is about 280.7134991865.

Adding to 22120243 its reverse (34202122), we get a palindrome (56322365).

The spelling of 22120243 in words is "twenty-two million, one hundred twenty thousand, two hundred forty-three".

Divisors: 1 29 199 3833 5771 111157 762767 22120243