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22330031444 = 2274753320153
BaseRepresentation
bin10100110010111110…
…010011110101010100
32010122012220010111122
4110302332103311110
5331212442001234
614131442023112
71420234064330
oct246276236524
963565803448
1022330031444
1195197a2146
1243b2347a98
13214b336176
14111b9307c0
158aa5c092e
hex532f93d54

22330031444 has 48 divisors (see below), whose sum is σ = 46470993408. Its totient is φ = 9189643008.

The previous prime is 22330031443. The next prime is 22330031461. The reversal of 22330031444 is 44413003322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22330031443) 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 15 ways as a sum of consecutive naturals, for example, 90329 + ... + 229824.

It is an arithmetic number, because the mean of its divisors is an integer number (968145696).

Almost surely, 222330031444 is an apocalyptic number.

It is an amenable number.

22330031444 is an abundant number, since it is smaller than the sum of its proper divisors (24140961964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22330031444 is a wasteful number, since it uses less digits than its factorization.

22330031444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320264 (or 320262 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 22330031444 its reverse (44413003322), we get a palindrome (66743034766).

The spelling of 22330031444 in words is "twenty-two billion, three hundred thirty million, thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 47 53 94 106 188 212 329 371 658 742 1316 1484 2491 4982 9964 17437 34874 69748 320153 640306 1280612 2241071 4482142 8964284 15047191 16968109 30094382 33936218 60188764 67872436 105330337 118776763 210660674 237553526 421321348 475107052 797501123 1595002246 3190004492 5582507861 11165015722 22330031444