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20424010303 = 79072583029
BaseRepresentation
bin10011000001010111…
…011010101000111111
31221201101101020001001
4103001113122220333
5313312021312203
613214353231131
71322061136354
oct230127325077
957641336031
1020424010303
118730904264
123b5bb624a7
131c064a4ac8
14dba73a62b
157e80c391d
hex4c15daa3f

20424010303 has 4 divisors (see below), whose sum is σ = 20426601240. Its totient is φ = 20421419368.

The previous prime is 20424010291. The next prime is 20424010319. The reversal of 20424010303 is 30301042402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30301042402 = 215150521201.

It is a cyclic number.

It is not a de Polignac number, because 20424010303 - 29 = 20424009791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424010363) 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 3 ways as a sum of consecutive naturals, for example, 1283608 + ... + 1299421.

It is an arithmetic number, because the mean of its divisors is an integer number (5106650310).

Almost surely, 220424010303 is an apocalyptic number.

20424010303 is a deficient number, since it is larger than the sum of its proper divisors (2590937).

20424010303 is an equidigital number, since it uses as much as digits as its factorization.

20424010303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590936.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20424010303 its reverse (30301042402), we get a palindrome (50725052705).

The spelling of 20424010303 in words is "twenty billion, four hundred twenty-four million, ten thousand, three hundred three".

Divisors: 1 7907 2583029 20424010303