20021491 is an odd 8-digits composite number following 20021490
and preceding 20021492 . In scientific notation, it is written as 2.0021491 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 16925760 positive integers (up to 20021491) that are relatively prime to 20021491.
20021491 has 8 divisors, whose sum is 23195744
The reverse of 20021491 is 19412002
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million twenty-one thousand four hundred ninety-one
Scientific notation
2.0021491 × 10^7
Engineering notation
2.0021491 × 10^6
Prime Factorization
73 × 7 × 39181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021491
Product of the distinct prime numbers
The prime factorization of 20021491 is 73 × 7 × 39181.
Since it has a total of 3 prime factors.
5 , 9 , 44 , 95 , 179 , 336 , 7096 , 7563 , 32803 , 65686 , 272973 , 522288 , 6972724 , 651102 , 29347766 , 38328204 , 269581404 , 921243479 , 628223203 , 3182581133
n×2
40042982
n×3
60064473
n×4
80085964
n×5
100107455
n÷2
10010745.5
n÷3
6673830.3333333
n÷3
5005372.75
n÷5
4004298.2
n2
400860101863081
n3
8.0258169217108E+21
n4
1.6068882126568E+29
n5
3.2172297887714E+36
2 √n
4474.5380767181
3 √n
271.53895277056
4 √n
66.891988135487
5 √n
28.860196467278
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
-20021490
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 20021491 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011000000011110011
3
Ternary
1101200012022201
4
Quaternary
1030120003303
5
Quinary
20111141431
6
Senary
1553044031
8
Octal
114300363
10
Decimal
20021491
12
Duodecimal
6856617
16
Hexadecimal
13180f3
20
Vigesimal
652deb
36
Base36
bx4oj
md5
e6c3bc869e11a1c3494b888036c49fd1
sha1
0804a8533a342eae6e00b7d6260e272a7b89ba1a
sha256
4bc722cdb6ccee875ecffc81cf3affef6cb1b336effbe3753b02953b67d106e7
sha512
cd2517a4f86436c44930ba33c0c4049b14fed001f03ed055ffcb46f09ad8fa0b2dc70b64dd935808599e81451779c99d88a4eb0e82af2283783712ade6e248fe
ripemd-160
c907a5b325f3de53abc9e1c52fa294db048c1e3a
Diameter
40042982
Circumference
125798738.07903
Area
1.2593391511303E+15
Volume
3.3618463307071E+22
Surface area
5.0373566045212E+15
Circumference
125798738.07903
Perimeter
80085964
Area
400860101863081
Diagonal
28314664.111131
Surface area
2405160611178486
Volume
8.0258169217108E+21
Space diagonal
34678239.655283
Perimeter
60064473
Area
1.7357751578852E+14
Altitude
17339119.827642
Surface area
1.7357751578852E+14
Volume
9.458515949839E+20
Height
9438221.370377