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20230444 = 2213389047
BaseRepresentation
bin100110100101…
…1000100101100
31102001210221201
41031023010230
520134333234
62001335244
7333645613
oct115130454
942053851
1020230444
1110468483
126937524
1342642a0
14298887a
151b99314
hex134b12c

20230444 has 12 divisors (see below), whose sum is σ = 38126704. Its totient is φ = 9337104.

The previous prime is 20230439. The next prime is 20230489. The reversal of 20230444 is 44403202.

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 3 ways as a sum of consecutive naturals, for example, 194472 + ... + 194575.

Almost surely, 220230444 is an apocalyptic number.

It is an amenable number.

20230444 is a deficient number, since it is larger than the sum of its proper divisors (17896260).

20230444 is a wasteful number, since it uses less digits than its factorization.

20230444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389064 (or 389062 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20230444 is about 4497.8265862525. The cubic root of 20230444 is about 272.4803184169.

Adding to 20230444 its reverse (44403202), we get a palindrome (64633646).

The spelling of 20230444 in words is "twenty million, two hundred thirty thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 389047 778094 1556188 5057611 10115222 20230444