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20044230 = 235668141
BaseRepresentation
bin100110001110…
…1100111000110
31101201100111220
41030131213012
520112403410
61553341210
7332241663
oct114354706
941640456
1020044230
1110350588
126867806
1341ca5bb
14293aa6a
151b5e070
hex131d9c6

20044230 has 16 divisors (see below), whose sum is σ = 48106224. Its totient is φ = 5345120.

The previous prime is 20044187. The next prime is 20044237. The reversal of 20044230 is 3244002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334041 + ... + 334100.

It is an arithmetic number, because the mean of its divisors is an integer number (3006639).

Almost surely, 220044230 is an apocalyptic number.

20044230 is an abundant number, since it is smaller than the sum of its proper divisors (28061994).

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

20044230 is a wasteful number, since it uses less digits than its factorization.

20044230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668151.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20044230 is about 4477.0782883483. The cubic root of 20044230 is about 271.6417121536.

Adding to 20044230 its reverse (3244002), we get a palindrome (23288232).

The spelling of 20044230 in words is "twenty million, forty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 668141 1336282 2004423 3340705 4008846 6681410 10022115 20044230