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20233111320 = 23325411917177
BaseRepresentation
bin10010110101111111…
…001100011100011000
31221020002011112212100
4102311333030130120
5312414134030240
613143413443400
71314252415512
oct226577143430
957202145770
1020233111320
118643078004
123b08040560
131ba5a86126
14d9d246bb2
157d6465e30
hex4b5fcc718

20233111320 has 192 divisors, whose sum is σ = 67723568640. Its totient is φ = 5235609600.

The previous prime is 20233111313. The next prime is 20233111321. The reversal of 20233111320 is 2311133202.

20233111320 is a `hidden beast` number, since 2 + 0 + 2 + 331 + 11 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20233111293 and 20233111302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233111321) 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 47 ways as a sum of consecutive naturals, for example, 2815572 + ... + 2822748.

It is an arithmetic number, because the mean of its divisors is an integer number (352726920).

Almost surely, 220233111320 is an apocalyptic number.

20233111320 is a gapful number since it is divisible by the number (20) 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 20233111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33861784320).

20233111320 is an abundant number, since it is smaller than the sum of its proper divisors (47490457320).

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

20233111320 is a wasteful number, since it uses less digits than its factorization.

20233111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426 (or 7419 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20233111320 its reverse (2311133202), we get a palindrome (22544244522).

The spelling of 20233111320 in words is "twenty billion, two hundred thirty-three million, one hundred eleven thousand, three hundred twenty".