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20442403483 = 104871949309
BaseRepresentation
bin10011000010011101…
…100101001010011011
31221202122222200201221
4103002131211022123
5313331223402413
613220251352511
71322403363655
oct230235451233
957678880657
1020442403483
118740227337
123b66152737
131c0a244a48
14dbcd676d5
157e9a0868d
hex4c276529b

20442403483 has 4 divisors (see below), whose sum is σ = 20444363280. Its totient is φ = 20440443688.

The previous prime is 20442403481. The next prime is 20442403529. The reversal of 20442403483 is 38430424402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38430424402 = 219215212201.

It is a cyclic number.

It is not a de Polignac number, because 20442403483 - 21 = 20442403481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20442403481) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 964168 + ... + 985141.

It is an arithmetic number, because the mean of its divisors is an integer number (5111090820).

Almost surely, 220442403483 is an apocalyptic number.

20442403483 is a deficient number, since it is larger than the sum of its proper divisors (1959797).

20442403483 is a wasteful number, since it uses less digits than its factorization.

20442403483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959796.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 20442403483 its reverse (38430424402), we get a palindrome (58872827885).

The spelling of 20442403483 in words is "twenty billion, four hundred forty-two million, four hundred three thousand, four hundred eighty-three".

Divisors: 1 10487 1949309 20442403483