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20023112303 = 61332664131
BaseRepresentation
bin10010101001011110…
…000111001001101111
31220200110000111100222
4102221132013021233
5312001404043203
613110512441555
71306122434465
oct225136071157
956613014328
1020023112303
1185455856a7
123a698492bb
131b7140a85c
14d7d3c0835
157c2cd4038
hex4a978726f

20023112303 has 4 divisors (see below), whose sum is σ = 20055777048. Its totient is φ = 19990447560.

The previous prime is 20023112297. The next prime is 20023112353. The reversal of 20023112303 is 30321132002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20023112303 - 210 = 20023111279 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 (20023112353) 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, 16331453 + ... + 16332678.

It is an arithmetic number, because the mean of its divisors is an integer number (5013944262).

Almost surely, 220023112303 is an apocalyptic number.

20023112303 is a deficient number, since it is larger than the sum of its proper divisors (32664745).

20023112303 is an equidigital number, since it uses as much as digits as its factorization.

20023112303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32664744.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20023112303 its reverse (30321132002), we get a palindrome (50344244305).

The spelling of 20023112303 in words is "twenty billion, twenty-three million, one hundred twelve thousand, three hundred three".

Divisors: 1 613 32664131 20023112303