82171921 is an odd 8-digits composite number following 82171920
and preceding 82171922 . In scientific notation, it is written as 8.2171921 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 74088000 positive integers (up to 82171921) that are relatively prime to 82171921.
82171921 has 16 divisors, whose sum is 90574848
The reverse of 82171921 is 12917128
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-two million one hundred seventy-one thousand nine hundred twenty-one
Scientific notation
8.2171921 × 10^7
Engineering notation
8.2171921 × 10^6
Prime Factorization
13 × 71 × 127 × 701
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
82171921
Product of the distinct prime numbers
The prime factorization of 82171921 is 13 × 71 × 127 × 701.
Since it has a total of 4 prime factors.
5 , 5 , 89 , 44 , 674 , 547 , 5057 , 4574 , 84170 , 61641 , 481969 , 571822 , 9385750 , 8923225 , 84123849 , 91426741 , 777451475 , 86746403 , 7374392692 , 9275724048
n×2
164343842
n×3
246515763
n×4
328687684
n×5
410859605
n÷2
41085960.5
n÷3
27390640.333333
n÷3
20542980.25
n÷5
16434384.2
n2
6752224600830241
n3
5.5484326647368E+23
n4
4.5592537060057E+31
n5
3.7464263534886E+39
2 √n
9064.872916925
3 √n
434.75155760956
4 √n
95.209626177845
5 √n
38.277598962857
1 , 13 , 71 , 127 , 701 , 923 , 1651 , 9017 , 9113 , 49771 , 89027 , 117221 , 647023 , 1157351 , 6320917 , 82171921
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
-82171920
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 82171921 can be divided by 16 positive divisors.
The sum of these divisors (counting 82171921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111001011101100000010001
3
Ternary
12201121202200111
4
Quaternary
10321131200101
5
Quinary
132014000141
6
Senary
12053121321
8
Octal
471354021
10
Decimal
82171921
12
Duodecimal
23629241
16
Hexadecimal
4e5d811
20
Vigesimal
15db9g1
36
Base36
1cx89d
md5
3971aa7ab55c6fd4dd790a3b744632dd
sha1
edaa4f95b32626b8b24676b2a5d4ea15d6e922a5
sha256
3e8c4b4101aecd621c98b74fd1a39260b177cee7f058eea933e87afdba346011
sha512
3a138c2bbab225ec7ccdb6566febd32793f72387e913514b336b5e5c20693a670ce1d6f26b2f8de39be18962e47953c0b09a43eb1f6a840291f45afb62462fc7
ripemd-160
b6d432dc21b2e721e046e2013ed4b457d56103a9
Diameter
164343842
Circumference
516301406.68992
Area
2.1212739201357E+16
Volume
2.3241220397966E+24
Surface area
8.4850956805426E+16
Circumference
516301406.68992
Perimeter
328687684
Area
6752224600830241
Diagonal
116208645.12445
Surface area
40513347604981446
Volume
5.5484326647368E+23
Space diagonal
142325942.12754
Perimeter
246515763
Area
2.9237990181886E+15
Altitude
71162971.063768
Surface area
2.9237990181886E+15
Volume
6.5388906036539E+22
Height
38736215.041484