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80084000000000 = 2115920021
BaseRepresentation
bin10010001101011000000010…
…010111110100100000000000
3101111112221210122200011002002
4102031120002113310200000
540444044013000000000
6442154025352043132
722603610114255453
oct2215300227644000
9344487718604062
1080084000000000
112357648523a447
128b949956934a8
13358bb728b8729
1415ac12ca8349a
1593d27e17c8d5
hex48d6025f4800

80084000000000 has 240 divisors, whose sum is σ = 200171097666540. Its totient is φ = 32032000000000.

The previous prime is 80083999999981. The next prime is 80084000000009. The reversal of 80084000000000 is 48008.

It can be written as a sum of positive squares in 10 ways, for example, as 28922367714304 + 51161632285696 = 5377952^2 + 7152736^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (80084000000009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3999989990 + ... + 4000010010.

Almost surely, 280084000000000 is an apocalyptic number.

80084000000000 is a gapful number since it is divisible by the number (80) 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 80084000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100085548833270).

80084000000000 is an abundant number, since it is smaller than the sum of its proper divisors (120087097666540).

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

80084000000000 is an frugal number, since it uses more digits than its factorization.

80084000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20088 (or 20028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 80084000000000 its reverse (48008), we get a palindrome (80084000048008).

The spelling of 80084000000000 in words is "eighty trillion, eighty-four billion", and thus it is an aban number.