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22124105 = 517325577
BaseRepresentation
bin101010001100…
…1011001001001
31112122000120022
41110121121021
521130432410
62110110225
7356023523
oct124313111
945560508
1022124105
1111541193
1274ab375
1347781b3
142d1ca13
151e20455
hex1519649

22124105 has 8 divisors (see below), whose sum is σ = 26703432. Its totient is φ = 17596288.

The previous prime is 22124099. The next prime is 22124107. The reversal of 22124105 is 50142122.

It can be written as a sum of positive squares in 4 ways, for example, as 1585081 + 20539024 = 1259^2 + 4532^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22124105 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22124107) 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, 11924 + ... + 13653.

It is an arithmetic number, because the mean of its divisors is an integer number (3337929).

Almost surely, 222124105 is an apocalyptic number.

It is an amenable number.

22124105 is a deficient number, since it is larger than the sum of its proper divisors (4579327).

22124105 is a wasteful number, since it uses less digits than its factorization.

22124105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25755.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22124105 is about 4703.6267921679. The cubic root of 22124105 is about 280.7298349390.

Adding to 22124105 its reverse (50142122), we get a palindrome (72266227).

The spelling of 22124105 in words is "twenty-two million, one hundred twenty-four thousand, one hundred five".

Divisors: 1 5 173 865 25577 127885 4424821 22124105