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20444124 = 2236532609
BaseRepresentation
bin100110111111…
…1001111011100
31102110200001210
41031333033130
520213202444
62010104420
7335525601
oct115771734
942420053
1020444124
11105a3a78
126a1b110
13430a61c
142a026a8
151bdc7b9
hex137f3dc

20444124 has 24 divisors (see below), whose sum is σ = 47794320. Its totient is φ = 6801664.

The previous prime is 20444113. The next prime is 20444147. The reversal of 20444124 is 42144402.

It is a super-2 number, since 2×204441242 = 835924412254752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20444124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6532 + ... + 9140.

It is an arithmetic number, because the mean of its divisors is an integer number (1991430).

Almost surely, 220444124 is an apocalyptic number.

It is an amenable number.

20444124 is an abundant number, since it is smaller than the sum of its proper divisors (27350196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20444124 is a wasteful number, since it uses less digits than its factorization.

20444124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 20444124 is about 4521.5178867279. The cubic root of 20444124 is about 273.4363000263.

Adding to 20444124 its reverse (42144402), we get a palindrome (62588526).

The spelling of 20444124 in words is "twenty million, four hundred forty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 653 1306 1959 2609 2612 3918 5218 7827 7836 10436 15654 31308 1703677 3407354 5111031 6814708 10222062 20444124