80721839 is an odd 8-digits composite number following 80721838
and preceding 80721840 . In scientific notation, it is written as 8.0721839 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 73255000 positive integers (up to 80721839) that are relatively prime to 80721839.
80721839 has 8 divisors, whose sum is 88214400
The reverse of 80721839 is 93812708
Previous prime number is 12251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty million seven hundred twenty-one thousand eight hundred thirty-nine
Scientific notation
8.0721839 × 10^7
Engineering notation
8.0721839 × 10^6
Prime Factorization
11 × 12251 × 599
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80721839
Product of the distinct prime numbers
The prime factorization of 80721839 is 11 × 12251 × 599.
Since it has a total of 3 prime factors.
9 , 9 , 68 , 21 , 829 , 950 , 8803 , 6845 , 48095 , 39916 , 864608 , 238705 , 8287529 , 629086 , 62393365 , 17613557 , 896018441 , 616818515 , 1117267523 , 3714871715
n×2
161443678
n×3
242165517
n×4
322887356
n×5
403609195
n÷2
40360919.5
n÷3
26907279.666667
n÷3
20180459.75
n÷5
16144367.8
n2
6516015291541921
n3
5.2598473728539E+23
n4
4.2458455279608E+31
n5
3.4273245912692E+39
2 √n
8984.5333212137
3 √n
432.1790220959
4 √n
94.7867781983
5 √n
38.141538715702
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-80721838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80721839 can be divided by 8 positive divisors.
The sum of these divisors (counting 80721839) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110011111011011110101111
3
Ternary
12121220002112202
4
Quaternary
10303323132233
5
Quinary
131131044324
6
Senary
12002052115
8
Octal
463733657
10
Decimal
80721839
12
Duodecimal
2304a03b
16
Hexadecimal
4cfb7af
20
Vigesimal
154a4bj
36
Base36
1c25db
md5
d5beb2fd871b55b1c54ce3a94fc380ce
sha1
4f49c6acc276d0fc3dc31f31d753e962a9a9ae14
sha256
92d6fc3806e89084173ac62d9f4bd8929044a52ddf76f4ea9fb640ce82daed32
sha512
411465c1c5ff5b5e23da0b6ddb2c70f376ed574a6747d99facebf0cd68955f1415a53a3e3f78e9c830e8c801caf7aafca99de0df791dfcbbd0861bf0a3e06ea3
ripemd-160
b4e2e6c24ef50f7ddbc3b5782e5618c03e1877e5
Diameter
161443678
Circumference
507190272.77332
Area
2.0470665770587E+16
Volume
2.2032397154082E+24
Surface area
8.1882663082347E+16
Circumference
507190272.77332
Perimeter
322887356
Area
6516015291541921
Diagonal
114157919.4935
Surface area
39096091749251526
Volume
5.2598473728539E+23
Space diagonal
139814326.42839
Perimeter
242165517
Area
2.8215173869616E+15
Altitude
69907163.214197
Surface area
2.8215173869616E+15
Volume
6.1987895755853E+22
Height
38052639.831166