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22426885 = 513973557
BaseRepresentation
bin101010110001…
…1010100000101
31120012101220101
41111203110011
521220130020
62120404101
7361424335
oct125432405
946171811
1022426885
1111728718
127616631
134852c60
142d9b0c5
151e8000a
hex1563505

22426885 has 16 divisors (see below), whose sum is σ = 29289456. Its totient is φ = 16386048.

The previous prime is 22426871. The next prime is 22426907. The reversal of 22426885 is 58862422.

It can be written as a sum of positive squares in 8 ways, for example, as 5262436 + 17164449 = 2294^2 + 4143^2 .

It is a cyclic number.

It is not a de Polignac number, because 22426885 - 219 = 21902597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4527 + ... + 8083.

It is an arithmetic number, because the mean of its divisors is an integer number (1830591).

Almost surely, 222426885 is an apocalyptic number.

It is an amenable number.

22426885 is a deficient number, since it is larger than the sum of its proper divisors (6862571).

22426885 is a wasteful number, since it uses less digits than its factorization.

22426885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672.

The product of its digits is 61440, while the sum is 37.

The square root of 22426885 is about 4735.7032212756. The cubic root of 22426885 is about 282.0046819470.

The spelling of 22426885 in words is "twenty-two million, four hundred twenty-six thousand, eight hundred eighty-five".

Divisors: 1 5 13 65 97 485 1261 3557 6305 17785 46241 231205 345029 1725145 4485377 22426885