201820981 is an odd 9-digits composite number following 201820980
and preceding 201820982 . In scientific notation, it is written as 2.01820981 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 199861452 positive integers (up to 201820981) that are relatively prime to 201820981.
201820981 has 4 divisors, whose sum is 203780512
The reverse of 201820981 is 189028102
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred one million eight hundred twenty thousand nine hundred eighty-one
Scientific notation
2.01820981 × 10^8
Engineering notation
2.01820981 × 10^6
Prime Factorization
103 × 1959427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201820981
Product of the distinct prime numbers
The prime factorization of 201820981 is 103 × 1959427.
Since it has a total of 2 prime factors.
1 , 2 , 99 , 75 , 48 , 605 , 4079 , 8571 , 39418 , 39421 , 780996 , 680496 , 8095085 , 3447732 , 25598029 , 20055854 , 385302564 , 784252484 , 38851915 , 1939915751
n×2
403641962
n×3
605462943
n×4
807283924
n×5
1009104905
n÷2
100910490.5
n÷3
67273660.333333
n÷3
50455245.25
n÷5
40364196.2
n2
40731708371802361
n3
8.2205133414031E+24
n4
1.6590720668856E+33
n5
3.3483555208854E+41
2 √n
14206.371141146
3 √n
586.57304832911
4 √n
119.19048259465
5 √n
45.813477938004
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
-201820980
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 201820981 can be divided by 4 positive divisors.
The sum of these divisors (counting 201820981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000001111000101100110101
3
Ternary
112001202120100011
4
Quaternary
30001320230311
5
Quinary
403131232411
6
Senary
32005420221
8
Octal
1401705465
10
Decimal
201820981
12
Duodecimal
5770a671
16
Hexadecimal
c078b35
20
Vigesimal
3317c91
36
Base36
3c5q2d
md5
a46eb4f0cefd9343af30c9a5bc1d4716
sha1
39d90ba611473b2aea3587f4e730b0f406c4a738
sha256
595b4527687806cab279f371a5bd3537e24415a7bc80c85aeb59d751229ddf08
sha512
076b8960ef8219af3e027652a8e985bebb3d7c81c70e5777a3c6d644123f9bfae5e96de02b95d6f4b1735f345f42f9554197f3d7c7ee59e17c10f5867ae7246e
ripemd-160
17f4d6e79b0a262aa3a7baa873f9b16933bc2f32
Diameter
403641962
Circumference
1268078622.4998
Area
1.2796243578902E+17
Volume
3.4434005762785E+25
Surface area
5.1184974315606E+17
Circumference
1268078622.4998
Perimeter
807283924
Area
40731708371802361
Diagonal
285417968.50164
Surface area
244390250230814166
Volume
8.2205133414031E+24
Space diagonal
349564193.12539
Perimeter
605462943
Area
1.763734709476E+16
Altitude
174782096.5627
Surface area
1.763734709476E+16
Volume
9.687967880901E+23
Height
95139322.833881