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20444410 = 257793697
BaseRepresentation
bin100110111111…
…1010011111010
31102110200110101
41031333103322
520213210120
62010110014
7335526460
oct115772372
942420411
1020444410
11105a4208
126a1b30a
13430a7ac
142a02830
151bdc90a
hex137f4fa

20444410 has 32 divisors (see below), whose sum is σ = 42600960. Its totient is φ = 6918912.

The previous prime is 20444381. The next prime is 20444429. The reversal of 20444410 is 1444402.

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 15 ways as a sum of consecutive naturals, for example, 3682 + ... + 7378.

It is an arithmetic number, because the mean of its divisors is an integer number (1331280).

Almost surely, 220444410 is an apocalyptic number.

20444410 is an abundant number, since it is smaller than the sum of its proper divisors (22156550).

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

20444410 is a wasteful number, since it uses less digits than its factorization.

20444410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 20444410 is about 4521.5495131647. The cubic root of 20444410 is about 273.4375750857.

Adding to 20444410 its reverse (1444402), we get a palindrome (21888812).

The spelling of 20444410 in words is "twenty million, four hundred forty-four thousand, four hundred ten".

Divisors: 1 2 5 7 10 14 35 70 79 158 395 553 790 1106 2765 3697 5530 7394 18485 25879 36970 51758 129395 258790 292063 584126 1460315 2044441 2920630 4088882 10222205 20444410