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4223202021144 = 233347250917389
BaseRepresentation
bin111101011101001010011…
…101001100111100011000
3112221201211012200011221000
4331131022131030330120
51023143104204134034
612552040123545000
7614054611612461
oct75351235147430
915851735604830
104223202021144
111389060495757
1258259998b160
13248327cbacb2
14108592a99d68
1574cc6347599
hex3d74a74cf18

4223202021144 has 192 divisors, whose sum is σ = 12010264380000. Its totient is φ = 1374996301056.

The previous prime is 4223202021127. The next prime is 4223202021169. The reversal of 4223202021144 is 4411202023224.

It is a happy number.

4223202021144 is a `hidden beast` number, since 4 + 22 + 320 + 202 + 114 + 4 = 666.

It is a super-2 number, since 2×42232020211442 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242857602 + ... + 242874990.

Almost surely, 24223202021144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4223202021144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6005132190000).

4223202021144 is an abundant number, since it is smaller than the sum of its proper divisors (7787062358856).

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

4223202021144 is a wasteful number, since it uses less digits than its factorization.

4223202021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007 (or 17950 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4223202021144 its reverse (4411202023224), we get a palindrome (8634404044368).

The spelling of 4223202021144 in words is "four trillion, two hundred twenty-three billion, two hundred two million, twenty-one thousand, one hundred forty-four".