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22424201 = 30773043
BaseRepresentation
bin101010110001…
…0101010001001
31120012021012222
41111202222021
521220033301
62120343425
7361413452
oct125425211
946167188
1022424201
11117266a8
127614b75
134851977
142d9a129
151e7e31b
hex1562a89

22424201 has 4 divisors (see below), whose sum is σ = 22497552. Its totient is φ = 22350852.

The previous prime is 22424197. The next prime is 22424209. The reversal of 22424201 is 10242422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10242422 = 25121211.

It is a cyclic number.

It is not a de Polignac number, because 22424201 - 22 = 22424197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22424201.

It is not an unprimeable number, because it can be changed into a prime (22424209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36215 + ... + 36828.

It is an arithmetic number, because the mean of its divisors is an integer number (5624388).

Almost surely, 222424201 is an apocalyptic number.

It is an amenable number.

22424201 is a deficient number, since it is larger than the sum of its proper divisors (73351).

22424201 is an equidigital number, since it uses as much as digits as its factorization.

22424201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73350.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22424201 is about 4735.4198335522. The cubic root of 22424201 is about 281.9934315993.

Adding to 22424201 its reverse (10242422), we get a palindrome (32666623).

The spelling of 22424201 in words is "twenty-two million, four hundred twenty-four thousand, two hundred one".

Divisors: 1 307 73043 22424201