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20244243223 = 891303174569
BaseRepresentation
bin10010110110101001…
…101010001100010111
31221020212010002222001
4102312221222030113
5312430011240343
613144452220131
71314446141161
oct226651521427
957225102861
1020244243223
118649390626
123b0b90a647
131ba8182c59
14da0903931
157d741444d
hex4b6a6a317

20244243223 has 8 divisors (see below), whose sum is σ = 20487535200. Its totient is φ = 20001303168.

The previous prime is 20244243203. The next prime is 20244243241. The reversal of 20244243223 is 32234244202.

It is a happy number.

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 20244243223 - 213 = 20244235031 is a prime.

It is a super-3 number, since 3×202442432233 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20244243191 and 20244243200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244243203) 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, 28683 + ... + 203251.

It is an arithmetic number, because the mean of its divisors is an integer number (2560941900).

Almost surely, 220244243223 is an apocalyptic number.

20244243223 is a deficient number, since it is larger than the sum of its proper divisors (243291977).

20244243223 is a wasteful number, since it uses less digits than its factorization.

20244243223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175961.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20244243223 its reverse (32234244202), we get a palindrome (52478487425).

The spelling of 20244243223 in words is "twenty billion, two hundred forty-four million, two hundred forty-three thousand, two hundred twenty-three".

Divisors: 1 89 1303 115967 174569 15536641 227463407 20244243223