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22144444444223 = 199321649513239
BaseRepresentation
bin1010000100011111001111…
…01111101010111000111111
32220101222200102000101200022
411002033213233222320333
510400303310234203343
6115033003424522355
74443611656032413
oct502174757527077
986358612011608
1022144444444223
117068451647762
1225978a97803bb
13c4829b13173a
14567b22702d43
15286063d4c568
hex1423e7beae3f

22144444444223 has 8 divisors (see below), whose sum is σ = 22156622124000. Its totient is φ = 22132267838208.

The previous prime is 22144444444141. The next prime is 22144444444231. The reversal of 22144444444223 is 32244444444122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22144444444223 - 226 = 22144377335359 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 (22144444444723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42889838 + ... + 43403076.

It is an arithmetic number, because the mean of its divisors is an integer number (2769577765500).

Almost surely, 222144444444223 is an apocalyptic number.

22144444444223 is a deficient number, since it is larger than the sum of its proper divisors (12177679777).

22144444444223 is a wasteful number, since it uses less digits than its factorization.

22144444444223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536881.

The product of its digits is 3145728, while the sum is 44.

Adding to 22144444444223 its reverse (32244444444122), we get a palindrome (54388888888345).

It can be divided in two parts, 221 and 44444444223, that added together give a palindrome (44444444444).

The spelling of 22144444444223 in words is "twenty-two trillion, one hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 1993 21649 513239 43146457 1022885327 11111111111 22144444444223