20167981 is an odd 8-digits composite number following 20167980
and preceding 20167982 . In scientific notation, it is written as 2.0167981 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20009052 positive integers (up to 20167981) that are relatively prime to 20167981.
20167981 has 4 divisors, whose sum is 20326912
The reverse of 20167981 is 18976102
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred sixty-seven thousand nine hundred eighty-one
Scientific notation
2.0167981 × 10^7
Engineering notation
2.0167981 × 10^6
Prime Factorization
127 × 158803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20167981
Product of the distinct prime numbers
The prime factorization of 20167981 is 127 × 158803.
Since it has a total of 2 prime factors.
10 , 6 , 34 , 23 , 416 , 102 , 4684 , 425 , 5535 , 81110 , 391169 , 565697 , 3439208 , 1441759 , 72668762 , 4411833 , 775899924 , 496470865 , 1360683527 , 4547280830
n×2
40335962
n×3
60503943
n×4
80671924
n×5
100839905
n÷2
10083990.5
n÷3
6722660.3333333
n÷3
5041995.25
n÷5
4033596.2
n2
406747457616361
n3
8.2032749970051E+21
n4
1.6544349427737E+29
n5
3.3366612491597E+36
2 √n
4490.8775311736
3 √n
272.19959488603
4 √n
67.0140099619
5 √n
28.902305330331
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
-20167980
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 20167981 can be divided by 4 positive divisors.
The sum of these divisors (counting 20167981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111011110100101101
3
Ternary
1101221122021021
4
Quaternary
1030323310231
5
Quinary
20130333411
6
Senary
2000134141
8
Octal
114736455
10
Decimal
20167981
12
Duodecimal
6907351
16
Hexadecimal
133bd2d
20
Vigesimal
660jj1
36
Base36
c09pp
md5
e0e4c2481329b5f40d4d35c56ebfa781
sha1
5b94bb70215d59956c9ba2f74896347d6f007223
sha256
398979b6a9ce816a4f16c3a162e722587adf1cd659db578d279c70b7471ef6f3
sha512
3cd513b82a97e2b836ca55382d0a934391243b0a8a6e340d63aa2eb5721a93677df55c68e8c62635a1a1c35fd6c0ff1aea13b2a69d33a958f253fa037f55be38
ripemd-160
2fdcf415a54e843be9fc61927b6cfa6123212d5c
Diameter
40335962
Circumference
126719161.89468
Area
1.2778348247139E+15
Volume
3.4361797954624E+22
Surface area
5.1113392988555E+15
Circumference
126719161.89468
Perimeter
80671924
Area
406747457616361
Diagonal
28521832.255883
Surface area
2440484745698166
Volume
8.2032749970051E+21
Space diagonal
34931967.778084
Perimeter
60503943
Area
1.7612681561025E+14
Altitude
17465983.889042
Surface area
1.7612681561025E+14
Volume
9.6676522972006E+20
Height
9507277.4186276