Search a number
-
+
20110110223 = 731520917791
BaseRepresentation
bin10010101110101001…
…111110111000001111
31220220111201110002011
4102232221332320033
5312141142011343
613123301242051
71311230054650
oct225651767017
956814643064
1020110110223
11858a6a6505
123a92a03327
131b8644b208
14d8ab89527
157ca76b29d
hex4aea7ee0f

20110110223 has 16 divisors (see below), whose sum is σ = 23730257920. Its totient is φ = 16677057600.

The previous prime is 20110110187. The next prime is 20110110239. The reversal of 20110110223 is 32201101102.

It is not a de Polignac number, because 20110110223 - 213 = 20110102031 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 (20110110263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1121458 + ... + 1139248.

It is an arithmetic number, because the mean of its divisors is an integer number (1483141120).

Almost surely, 220110110223 is an apocalyptic number.

20110110223 is a deficient number, since it is larger than the sum of its proper divisors (3620147697).

20110110223 is a wasteful number, since it uses less digits than its factorization.

20110110223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23038.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20110110223 its reverse (32201101102), we get a palindrome (52311211325).

The spelling of 20110110223 in words is "twenty billion, one hundred ten million, one hundred ten thousand, two hundred twenty-three".

Divisors: 1 7 31 217 5209 17791 36463 124537 161479 551521 1130353 3860647 92673319 648713233 2872872889 20110110223