20100981 is an odd 8-digits composite number following 20100980
and preceding 20100982 . In scientific notation, it is written as 2.0100981 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13400652 positive integers (up to 20100981) that are relatively prime to 20100981.
20100981 has 4 divisors, whose sum is 26801312
The reverse of 20100981 is 18900102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred thousand nine hundred eighty-one
Scientific notation
2.0100981 × 10^7
Engineering notation
2.0100981 × 10^6
Prime Factorization
3 × 6700327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20100981
Product of the distinct prime numbers
The prime factorization of 20100981 is 3 × 6700327.
Since it has a total of 2 prime factors.
1 , 7 , 48 , 28 , 484 , 113 , 5562 , 1358 , 27198 , 74142 , 379745 , 693624 , 7008566 , 5873099 , 40723130 , 11791204 , 501562920 , 475206115 , 4525020858 , 163065745
n×2
40201962
n×3
60302943
n×4
80403924
n×5
100504905
n÷2
10050490.5
n÷3
6700327
n÷3
5025245.25
n÷5
4020196.2
n2
404049437162361
n3
8.1217900594613E+21
n4
1.6325594767122E+29
n5
3.2816047022762E+36
2 √n
4483.4117589175
3 √n
271.89783594683
4 √n
66.958283721415
5 √n
28.883076505845
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20100980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20100981 can be divided by 4 positive divisors.
The sum of these divisors (counting 20100981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101011011101110101
3
Ternary
1101211020100210
4
Quaternary
1030223131311
5
Quinary
20121212411
6
Senary
1554500033
8
Octal
114533565
10
Decimal
20100981
12
Duodecimal
6894619
16
Hexadecimal
132b775
20
Vigesimal
65cc91
36
Base36
byu0l
md5
9a8a73a2e0218da82681c82d0342c3bc
sha1
e5e4d37274ca5b97669e4f242d25a967d5735eb6
sha256
44c07db405619f19333afdfffcd3bd18f7521546adf6f5f655288f30fa6b4c25
sha512
524db99395b4d11e7c589caf1e13c717bd91d3ada78457cf8facc46e1904fe02bc8d0734f731ae4dc63a53ab04eb86a7a14761ca43fe853367b847a3f7b92ab6
ripemd-160
9ad1061101209b388fa443f2f2d5f1168c183497
Diameter
40201962
Circumference
126298188.4791
Area
1.2693587434764E+15
Volume
3.4020474646403E+22
Surface area
5.0774349739055E+15
Circumference
126298188.4791
Perimeter
80403924
Area
404049437162361
Diagonal
28427079.947204
Surface area
2424296622974166
Volume
8.1217900594613E+21
Space diagonal
34815920.373977
Perimeter
60302943
Area
1.749585384837E+14
Altitude
17407960.186988
Surface area
1.749585384837E+14
Volume
9.5716213773643E+20
Height
9475693.3157346