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20005041 = 3729107307
BaseRepresentation
bin100110001010…
…0000010110001
31101122100202110
41030110002301
520110130131
61552435533
7332016510
oct114240261
941570673
1020005041
11103240a1
126848ba9
1341b5804
14292a677
151b52646
hex13140b1

20005041 has 32 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 10898496.

The previous prime is 20005021. The next prime is 20005087. The reversal of 20005041 is 14050002.

It is not a de Polignac number, because 20005041 - 26 = 20004977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20005021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65010 + ... + 65316.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 220005041 is an apocalyptic number.

20005041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20005041 is a deficient number, since it is larger than the sum of its proper divisors (11928399).

20005041 is a wasteful number, since it uses less digits than its factorization.

20005041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20005041 is about 4472.6995204239. The cubic root of 20005041 is about 271.4645653757.

Adding to 20005041 its reverse (14050002), we get a palindrome (34055043).

The spelling of 20005041 in words is "twenty million, five thousand, forty-one".

Divisors: 1 3 7 21 29 87 107 203 307 321 609 749 921 2149 2247 3103 6447 8903 9309 21721 26709 32849 62321 65163 98547 186963 229943 689829 952621 2857863 6668347 20005041