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20442445014 = 234379234283
BaseRepresentation
bin10011000010011101…
…101111010011010110
31221202200001210201010
4103002131233103112
5313331231220024
613220252313050
71322403626025
oct230235572326
957680053633
1020442445014
118740255562
123b66172786
131c0a25a914
14dbcd788bc
157e9a15b29
hex4c276f4d6

20442445014 has 16 divisors (see below), whose sum is σ = 41835701952. Its totient is φ = 6655679688.

The previous prime is 20442445007. The next prime is 20442445019. The reversal of 20442445014 is 41054424402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442445019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39616884 + ... + 39617399.

It is an arithmetic number, because the mean of its divisors is an integer number (2614731372).

Almost surely, 220442445014 is an apocalyptic number.

20442445014 is an abundant number, since it is smaller than the sum of its proper divisors (21393256938).

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

20442445014 is a wasteful number, since it uses less digits than its factorization.

20442445014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79234331.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 20442445014 its reverse (41054424402), we get a palindrome (61496869416).

The spelling of 20442445014 in words is "twenty billion, four hundred forty-two million, four hundred forty-five thousand, fourteen".

Divisors: 1 2 3 6 43 86 129 258 79234283 158468566 237702849 475405698 3407074169 6814148338 10221222507 20442445014