2011191981 is an odd 10-digits composite number following 2011191980
and preceding 2011191982 . In scientific notation, it is written as 2.011191981 × 10^9.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 1340794652 positive integers (up to 2011191981) that are relatively prime to 2011191981.
2011191981 has 4 divisors, whose sum is 2681589312
The reverse of 2011191981 is 1891911102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6
Name
two billion eleven million one hundred ninety-one thousand nine hundred eighty-one
Scientific notation
2.011191981 × 10^9
Engineering notation
2.011191981 × 10^9
Prime Factorization
3 × 670397327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2011191981
Product of the distinct prime numbers
The prime factorization of 2011191981 is 3 × 670397327.
Since it has a total of 2 prime factors.
9 , 6 , 10 , 91 , 90 , 798 , 9259 , 1320 , 32716 , 75730 , 863017 , 761626 , 5062910 , 6774769 , 95210352 , 73462233 , 239875801 , 78101434 , 8836087902 , 6331219201
n×2
4022383962
n×3
6033575943
n×4
8044767924
n×5
10055959905
n÷2
1005595990.5
n÷3
670397327
n÷3
502797995.25
n÷5
402238396.2
n2
4044893184438704361
n3
8.1350567365447E+27
n4
1.6361160873519E+37
n5
3.2905435548672E+46
2 √n
44846.315132907
3 √n
1262.2668483744
4 √n
211.76948583993
5 √n
72.558902604852
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
-2011191980
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 2011191981 can be divided by 4 positive divisors.
The sum of these divisors (counting 2011191981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111111000000101101010101101
3
Ternary
12012011102010201220
4
Quaternary
1313320011222231
5
Quinary
13104331120411
6
Senary
531322453553
8
Octal
16770055255
10
Decimal
2011191981
12
Duodecimal
4816642b9
16
Hexadecimal
77e05aad
20
Vigesimal
1b89ijj1
36
Base36
x9etnx
md5
4e3ae5ed1bc5983315b2ddbfc63ae6e4
sha1
ff29178f63e715fbf6346d2287e35b1af2a8e0b8
sha256
9c892501563f2e1cd3a4c3b91d793a1c74d919110d66b0e6e2c67f3bc003391a
sha512
4f24ed3a4281a5ad8f7146f5687f52bd517e9389cb7c0e63445ea49f08f33c14ed667d30461164b5eebbda9ad55e461b9b92070a68990dda79b1ccf7411a1d81
ripemd-160
cb2ff31c960815ccf77401659f391476908d10f1
Diameter
4022383962
Circumference
12636691904.937
Area
1.2707406712788E+19
Volume
3.407604597342E+28
Surface area
5.0829626851152E+19
Circumference
12636691904.937
Perimeter
8044767924
Area
4044893184438704361
Diagonal
2844254976.0662
Surface area
2.4269359106632E+19
Volume
8.1350567365447E+27
Space diagonal
3483486694.8671
Perimeter
6033575943
Area
1.7514901266592E+18
Altitude
1741743347.4335
Surface area
1.7514901266592E+18
Volume
9.5872563062467E+26
Height
948084992.02207