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22230653 = 43351341
BaseRepresentation
bin101010011001…
…1011001111101
31112211102201112
41110303121331
521142340103
62112251405
7356646254
oct124633175
945742645
1022230653
1111604245
127540b65
1347b4843
142d4979b
151e41cd8
hex153367d

22230653 has 4 divisors (see below), whose sum is σ = 22282428. Its totient is φ = 22178880.

The previous prime is 22230643. The next prime is 22230661. The reversal of 22230653 is 35603222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35603222 = 217801611.

It can be written as a sum of positive squares in 2 ways, for example, as 9966649 + 12264004 = 3157^2 + 3502^2 .

It is a cyclic number.

It is not a de Polignac number, because 22230653 - 218 = 21968509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230623) 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, 25238 + ... + 26103.

It is an arithmetic number, because the mean of its divisors is an integer number (5570607).

Almost surely, 222230653 is an apocalyptic number.

It is an amenable number.

22230653 is a deficient number, since it is larger than the sum of its proper divisors (51775).

22230653 is an equidigital number, since it uses as much as digits as its factorization.

22230653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51774.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 22230653 is about 4714.9393421337. The cubic root of 22230653 is about 281.1797712388.

Adding to 22230653 its reverse (35603222), we get a palindrome (57833875).

The spelling of 22230653 in words is "twenty-two million, two hundred thirty thousand, six hundred fifty-three".

Divisors: 1 433 51341 22230653