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22033012231 = 177933194943
BaseRepresentation
bin10100100001010001…
…010001011000000111
32002212111222222202001
4110201101101120013
5330110422342411
614042151530131
71406666341156
oct244121213007
962774888661
1022033012231
11938707421a
12432a989947
132101940059
1410d02d559d
1588e49edc1
hex521451607

22033012231 has 16 divisors (see below), whose sum is σ = 23636275200. Its totient is φ = 20464149888.

The previous prime is 22033012193. The next prime is 22033012271. The reversal of 22033012231 is 13221033022.

It is not a de Polignac number, because 22033012231 - 27 = 22033012103 is a prime.

It is a super-2 number, since 2×220330122312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22033012199 and 22033012208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22033012271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4454946 + ... + 4459888.

It is an arithmetic number, because the mean of its divisors is an integer number (1477267200).

Almost surely, 222033012231 is an apocalyptic number.

22033012231 is a deficient number, since it is larger than the sum of its proper divisors (1603262969).

22033012231 is a wasteful number, since it uses less digits than its factorization.

22033012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22033012231 its reverse (13221033022), we get a palindrome (35254045253).

The spelling of 22033012231 in words is "twenty-two billion, thirty-three million, twelve thousand, two hundred thirty-one".

Divisors: 1 17 79 1343 3319 4943 56423 84031 262201 390497 4457417 6638449 16405817 278898889 1296059543 22033012231