80821390 is an even 8-digits composite number following 80821389
and preceding 80821391 . In scientific notation, it is written as 8.0821390 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 29841696 positive integers (up to 80821390) that are relatively prime to 80821390.
80821390 has 16 divisors, whose sum is 156669408
The reverse of 80821390 is 09312808
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty million eight hundred twenty-one thousand three hundred ninety
Scientific notation
8.0821390 × 10^7
Engineering notation
8.0821390 × 10^6
Prime Factorization
2 × 5 × 13 × 621703
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
80821390
Product of the distinct prime numbers
The prime factorization of 80821390 is 2 × 5 × 13 × 621703.
Since it has a total of 4 prime factors.
2 , 10 , 55 , 72 , 633 , 10 , 7125 , 6629 , 5978 , 98413 , 833588 , 385606 , 1924933 , 5558724 , 15314882 , 57394111 , 128037661 , 139971391 , 6065831053 , 3032176646
n×2
161642780
n×3
242464170
n×4
323285560
n×5
404106950
n÷2
40410695
n÷3
26940463.333333
n÷3
20205347.5
n÷5
16164278
n2
6532097081532100
n3
5.2793316574437E+23
n4
4.266829228256E+31
n5
3.4485106912028E+39
2 √n
8990.0717460986
3 √n
432.35661211755
4 √n
94.815988873705
5 √n
38.150941763659
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 621703 , 1243406 , 3108515 , 6217030 , 8082139 , 16164278 , 40410695 , 80821390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-80821389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80821390 can be divided by 16 positive divisors.
The sum of these divisors (counting 80821390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100010011110010001110
3
Ternary
12122002011002211
4
Quaternary
10310103302032
5
Quinary
131142241030
6
Senary
12004141034
8
Octal
464236216
10
Decimal
80821390
12
Duodecimal
2309777a
16
Hexadecimal
4d13c8e
20
Vigesimal
1552d9a
36
Base36
1c4a6m
md5
33d40fbdd7255ddd29dc518d418a4c43
sha1
f6ede5b0d986810dc5462103b5ca0361866b0ca5
sha256
04079309454af44f9f05b3583379e55a902e6fe6a760c21e6e5d68a6d45c237c
sha512
f32774e93b54ec502099cb1d6c755128759d59ace008ec1f576cf6912a9a85f8cec2ddc0bb68fbd0404b935ce3d4182c2c0c3ad7655005f5179cb51075f7603b
ripemd-160
0a2f76ec024ae088cd05cdfb0bef19be13034484
Diameter
161642780
Circumference
507815770.15383
Area
2.0521188203877E+16
Volume
2.2114012734519E+24
Surface area
8.2084752815506E+16
Circumference
507815770.15383
Perimeter
323285560
Area
6532097081532100
Diagonal
114298705.86785
Surface area
39192582489192600
Volume
5.2793316574437E+23
Space diagonal
139986753.81834
Perimeter
242464170
Area
2.8284810062965E+15
Altitude
69993376.90917
Surface area
2.8284810062965E+15
Volume
6.2217520251854E+22
Height
38099568.622615