80821391 is an odd 8-digits composite number following 80821390
and preceding 80821392 . In scientific notation, it is written as 8.0821391 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 68815800 positive integers (up to 80821391) that are relatively prime to 80821391.
80821391 has 8 divisors, whose sum is 92980224
The reverse of 80821391 is 19312808
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty million eight hundred twenty-one thousand three hundred ninety-one
Scientific notation
8.0821391 × 10^7
Engineering notation
8.0821391 × 10^6
Prime Factorization
7 × 151 × 76463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80821391
Product of the distinct prime numbers
The prime factorization of 80821391 is 7 × 151 × 76463.
Since it has a total of 3 prime factors.
5 , 4 , 48 , 66 , 71 , 562 , 396 , 3868 , 60017 , 55788 , 296341 , 228228 , 932994 , 8872958 , 98660453 , 26881767 , 773072547 , 296491920 , 5306753105 , 6315142271
n×2
161642782
n×3
242464173
n×4
323285564
n×5
404106955
n÷2
40410695.5
n÷3
26940463.666667
n÷3
20205347.75
n÷5
16164278.2
n2
6532097243174881
n3
5.2793318534066E+23
n4
4.2668294394293E+31
n5
3.4485109045443E+39
2 √n
8990.0718017155
3 √n
432.35661390072
4 √n
94.815989166994
5 √n
38.150941858067
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
-80821390
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 80821391 can be divided by 8 positive divisors.
The sum of these divisors (counting 80821391) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110100010011110010001111
3
Ternary
12122002011002212
4
Quaternary
10310103302033
5
Quinary
131142241031
6
Senary
12004141035
8
Octal
464236217
10
Decimal
80821391
12
Duodecimal
2309777b
16
Hexadecimal
4d13c8f
20
Vigesimal
1552d9b
36
Base36
1c4a6n
md5
55aa09dab555242d3f68d94514861d18
sha1
76a93f19b3882f8a30653dea1f90221bc89e6cae
sha256
affb7d27fa2dc4f215e565ce24faf6a9de55df1c76b5d5c56c5820f19016d106
sha512
d9c2650751c9889535aa0d66ca7a3fe0fd202232cfb3de5a7c1d1be052b16ee26207543bd7154821bc047067fe63d5d7f92445b502e8527606fd1f7f30525d36
ripemd-160
1a8257d34e7fe4aa0f6538d279cd053845157e24
Diameter
161642782
Circumference
507815776.43702
Area
2.0521188711692E+16
Volume
2.2114013555366E+24
Surface area
8.2084754846769E+16
Circumference
507815776.43702
Perimeter
323285564
Area
6532097243174881
Diagonal
114298707.28206
Surface area
39192583459049286
Volume
5.2793318534066E+23
Space diagonal
139986755.55039
Perimeter
242464173
Area
2.8284810762899E+15
Altitude
69993377.775195
Surface area
2.8284810762899E+15
Volume
6.2217522561299E+22
Height
38099569.09402