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20833000000 = 265683251
BaseRepresentation
bin10011011001101111…
…100101101001000000
31222202212222001102121
4103121233211221000
5320131222000000
613323123254024
71335155402221
oct233157455100
958685861377
1020833000000
11892075a27a
124054b1a314
131c70143147
141018ba1248
1581de60b1a
hex4d9be5a40

20833000000 has 196 divisors, whose sum is σ = 52505890416. Its totient is φ = 8200000000.

The previous prime is 20832999997. The next prime is 20833000009. The reversal of 20833000000 is 33802.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20833000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 82999875 + ... + 83000125.

It is an arithmetic number, because the mean of its divisors is an integer number (267887196).

Almost surely, 220833000000 is an apocalyptic number.

20833000000 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 20833000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26252945208).

20833000000 is an abundant number, since it is smaller than the sum of its proper divisors (31672890416).

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

20833000000 is an frugal number, since it uses more digits than its factorization.

20833000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20833000000 its reverse (33802), we get a palindrome (20833033802).

The spelling of 20833000000 in words is "twenty billion, eight hundred thirty-three million", and thus it is an aban number.