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20013103233 = 324723470819
BaseRepresentation
bin10010101000110111…
…111011100010000001
31220122202011222111200
4102220313323202001
5311441323300413
613105514131413
71305641366514
oct225067734201
956582158450
1020013103233
11853a969742
123a66420b69
131b6c314b26
14d7bd36d7b
157c1ea8573
hex4a8dfb881

20013103233 has 12 divisors (see below), whose sum is σ = 28913997840. Its totient is φ = 13339215576.

The previous prime is 20013103223. The next prime is 20013103241. The reversal of 20013103233 is 33230131002.

It is not a de Polignac number, because 20013103233 - 26 = 20013103169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013103223) 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 11 ways as a sum of consecutive naturals, for example, 192903 + ... + 277916.

It is an arithmetic number, because the mean of its divisors is an integer number (2409499820).

Almost surely, 220013103233 is an apocalyptic number.

It is an amenable number.

20013103233 is a deficient number, since it is larger than the sum of its proper divisors (8900894607).

20013103233 is a wasteful number, since it uses less digits than its factorization.

20013103233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475548 (or 475545 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20013103233 its reverse (33230131002), we get a palindrome (53243234235).

The spelling of 20013103233 in words is "twenty billion, thirteen million, one hundred three thousand, two hundred thirty-three".

Divisors: 1 3 9 4723 14169 42507 470819 1412457 4237371 2223678137 6671034411 20013103233