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22108489 = 138392027
BaseRepresentation
bin101010001010…
…1100101001001
31112121020010221
41110111211021
521124432424
62105510041
7355630144
oct124254511
945536127
1022108489
1111530487
1274a2321
134771060
142d1705b
151e1a9e4
hex1515949

22108489 has 8 divisors (see below), whose sum is σ = 23849280. Its totient is φ = 20373456.

The previous prime is 22108453. The next prime is 22108507. The reversal of 22108489 is 98480122.

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 22108489 - 213 = 22100297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22108439) 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 7 ways as a sum of consecutive naturals, for example, 9894 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (2981160).

Almost surely, 222108489 is an apocalyptic number.

It is an amenable number.

22108489 is a deficient number, since it is larger than the sum of its proper divisors (1740791).

22108489 is a wasteful number, since it uses less digits than its factorization.

22108489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 22108489 is about 4701.9665034962. The cubic root of 22108489 is about 280.6637696083.

The spelling of 22108489 in words is "twenty-two million, one hundred eight thousand, four hundred eighty-nine".

Divisors: 1 13 839 2027 10907 26351 1700653 22108489