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22143433312 = 25711136591049
BaseRepresentation
bin10100100111110110…
…011111101001100000
32010011012202221222201
4110213312133221200
5330322204331222
614101134342544
71412510035420
oct244766375140
963135687881
1022143433312
119433433210
12435b95aa54
13211b791c80
141100c3a480
15899012427
hex527d9fa60

22143433312 has 192 divisors, whose sum is σ = 58677696000. Its totient is φ = 7944007680.

The previous prime is 22143433289. The next prime is 22143433349. The reversal of 22143433312 is 21333434122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 21108564 + ... + 21109612.

It is an arithmetic number, because the mean of its divisors is an integer number (305613000).

Almost surely, 222143433312 is an apocalyptic number.

22143433312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22143433312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29338848000).

22143433312 is an abundant number, since it is smaller than the sum of its proper divisors (36534262688).

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

22143433312 is a wasteful number, since it uses less digits than its factorization.

22143433312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1741 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

Adding to 22143433312 its reverse (21333434122), we get a palindrome (43476867434).

The spelling of 22143433312 in words is "twenty-two billion, one hundred forty-three million, four hundred thirty-three thousand, three hundred twelve".