20968081 is an odd 8-digits composite number following 20968080
and preceding 20968082 . In scientific notation, it is written as 2.0968081 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20802852 positive integers (up to 20968081) that are relatively prime to 20968081.
20968081 has 4 divisors, whose sum is 21133312
The reverse of 20968081 is 18086902
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million nine hundred sixty-eight thousand eighty-one
Scientific notation
2.0968081 × 10^7
Engineering notation
2.0968081 × 10^6
Prime Factorization
127 × 165103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20968081
Product of the distinct prime numbers
The prime factorization of 20968081 is 127 × 165103.
Since it has a total of 2 prime factors.
1 , 5 , 40 , 92 , 90 , 657 , 6805 , 2045 , 66896 , 39101 , 757133 , 65716 , 2739352 , 4647441 , 70059150 , 71936657 , 686556024 , 120574669 , 3456275603 , 4496242704
n×2
41936162
n×3
62904243
n×4
83872324
n×5
104840405
n÷2
10484040.5
n÷3
6989360.3333333
n÷3
5242020.25
n÷5
4193616.2
n2
439660420822561
n3
9.2188353163015E+21
n4
1.9330128563787E+29
n5
4.053157014659E+36
2 √n
4579.091722165
3 √n
275.75256564568
4 √n
67.668986413016
5 √n
29.128071845126
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
-20968080
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 20968081 can be divided by 4 positive divisors.
The sum of these divisors (counting 20968081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111111001010010001
3
Ternary
1110110021210121
4
Quaternary
1033333022101
5
Quinary
20331434311
6
Senary
2025230241
8
Octal
117771221
10
Decimal
20968081
12
Duodecimal
7032381
16
Hexadecimal
13ff291
20
Vigesimal
6b1041
36
Base36
chf2p
md5
a84865f1ef6611d395e8ad884335108b
sha1
7eb74aff250ae00627ec892f44bb94b91c6bf6fd
sha256
9863980d0752a68a9e6ae2a99a4cba04dcd4b5d460c1dc848c8801b4afce103e
sha512
eb62375e03bbb3c7e787c8d265879bf952b36836ed56338c83ea71bb5be0457fc8b1c5e64326e4d0fa6570f0e1d2e34476d1dd228496e214b9773ac87af673e7
ripemd-160
a6a1bf9e2cb8e21acc71136aa70c16160ba7b518
Diameter
41936162
Circumference
131746338.45895
Area
1.3812339481304E+15
Volume
3.8615767072463E+22
Surface area
5.5249357925214E+15
Circumference
131746338.45895
Perimeter
83872324
Area
439660420822561
Diagonal
29653344.527138
Surface area
2637962524935366
Volume
9.2188353163015E+21
Space diagonal
36317781.62922
Perimeter
62904243
Area
1.9037854673545E+14
Altitude
18158890.81461
Surface area
1.9037854673545E+14
Volume
1.0864501611331E+21
Height
9884448.1757125