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22280801 is a prime number
BaseRepresentation
bin101010011111…
…1101001100001
31112220222111212
41110333221201
521200441201
62113315505
7360245414
oct124775141
945828455
1022280801
1111638994
127565b95
13480160a
142d5db7b
151e51abb
hex153fa61

22280801 has 2 divisors, whose sum is σ = 22280802. Its totient is φ = 22280800.

The previous prime is 22280779. The next prime is 22280833. The reversal of 22280801 is 10808222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22278400 + 2401 = 4720^2 + 49^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22280801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22280851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11140400 + 11140401.

It is an arithmetic number, because the mean of its divisors is an integer number (11140401).

Almost surely, 222280801 is an apocalyptic number.

It is an amenable number.

22280801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22280801 is an equidigital number, since it uses as much as digits as its factorization.

22280801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 22280801 is about 4720.2543363679. The cubic root of 22280801 is about 281.3910412917.

The spelling of 22280801 in words is "twenty-two million, two hundred eighty thousand, eight hundred one".