20921147 is an odd 8-digits composite number following 20921146
and preceding 20921148 . In scientific notation, it is written as 2.0921147 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 18295200 positive integers (up to 20921147) that are relatively prime to 20921147.
20921147 has 8 divisors, whose sum is 23716560
The reverse of 20921147 is 74112902
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million nine hundred twenty-one thousand one hundred forty-seven
Scientific notation
2.0921147 × 10^7
Engineering notation
2.0921147 × 10^6
Prime Factorization
13 × 19 × 84701
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921147
Product of the distinct prime numbers
The prime factorization of 20921147 is 13 × 19 × 84701.
Since it has a total of 3 prime factors.
6 , 1 , 68 , 76 , 182 , 752 , 8670 , 4026 , 3420 , 28266 , 896785 , 170301 , 5249775 , 5975821 , 62831360 , 61316215 , 377553196 , 701818392 , 9312967541 , 7616371065
n×2
41842294
n×3
62763441
n×4
83684588
n×5
104605735
n÷2
10460573.5
n÷3
6973715.6666667
n÷3
5230286.75
n÷5
4184229.4
n2
437694391795609
n3
9.1570687118315E+21
n4
1.9157638060933E+29
n5
4.0079976204557E+36
2 √n
4573.9640357134
3 √n
275.54666793968
4 √n
67.631087790405
5 √n
29.115020363786
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
-20921146
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 20921147 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921147) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011101100111011
3
Ternary
1110100220102022
4
Quaternary
1033303230323
5
Quinary
20323434042
6
Senary
2024225055
8
Octal
117635473
10
Decimal
20921147
12
Duodecimal
700b18b
16
Hexadecimal
13f3b3b
20
Vigesimal
6af2h7
36
Base36
cgeuz
md5
f4ac0769551976c8fcddc8d10e7ccb9e
sha1
7d304f47b3c997ee7bf928e1007d518eb71bb978
sha256
f2c22917f7dfff53bbc0da54c9ec13e66ee19b4eb419faf62655e4aaf3d1fc0a
sha512
1fd3d627194ad8d322218d2b75a4de3ada3d83d6f1f9280ac0b8ea9a413619267f02ef98844fbd19dcb39d1e1c5d28545271cb4c9c3d989a1016c29c1a790352
ripemd-160
882c4eecc28568d6a719be2dfda632e3e2a92bac
Diameter
41842294
Circumference
131451443.43974
Area
1.3750574857825E+15
Volume
3.8357039724676E+22
Surface area
5.5002299431302E+15
Circumference
131451443.43974
Perimeter
83684588
Area
437694391795609
Diagonal
29586969.827801
Surface area
2626166350773654
Volume
9.1570687118315E+21
Space diagonal
36236489.556617
Perimeter
62763441
Area
1.8952723119449E+14
Altitude
18118244.778309
Surface area
1.8952723119449E+14
Volume
1.0791708969879E+21
Height
9862323.2759337