20218971 is an odd 8-digits composite number following 20218970
and preceding 20218972 . In scientific notation, it is written as 2.0218971 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13340160 positive integers (up to 20218971) that are relatively prime to 20218971.
20218971 has 8 divisors, whose sum is 27236944
The reverse of 20218971 is 17981202
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred eighteen thousand nine hundred seventy-one
Scientific notation
2.0218971 × 10^7
Engineering notation
2.0218971 × 10^6
Prime Factorization
3 × 97 × 69481
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218971
Product of the distinct prime numbers
The prime factorization of 20218971 is 3 × 97 × 69481.
Since it has a total of 3 prime factors.
9 , 4 , 26 , 58 , 65 , 720 , 7049 , 7572 , 85217 , 9389 , 865339 , 405424 , 2355588 , 8976886 , 19299502 , 91439553 , 793817913 , 366317461 , 7796659965 , 338773831
n×2
40437942
n×3
60656913
n×4
80875884
n×5
101094855
n÷2
10109485.5
n÷3
6739657
n÷3
5054742.75
n÷5
4043794.2
n2
408806788298841
n3
8.2656525972174E+21
n4
1.6712299015921E+29
n5
3.3790548914624E+36
2 √n
4496.5510116088
3 √n
272.42879939859
4 √n
67.056327155674
5 √n
28.916905110201
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20218970
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20218971 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000010001011011
3
Ternary
1102001020012210
4
Quaternary
1031020101123
5
Quinary
20134001341
6
Senary
2001210203
8
Octal
115102133
10
Decimal
20218971
12
Duodecimal
6930963
16
Hexadecimal
134845b
20
Vigesimal
66778b
36
Base36
c1d23
md5
e2bbe2b089134bdf4831ede2e3f37328
sha1
a67d8d85910e17a2e733520e070b3cdfec59691b
sha256
c083771e2880404aca90b5b6a6421e162aa5524522ab2b3da35705ea95aaf202
sha512
941cd4596743f4d0ffb3ed5f35812c57dee73aae0a1b71717e07dd067f63a565680cfe4d2111e10285c13d1ed7c9e7ab54504c86ca88ffd6ab14cd7906268552
ripemd-160
da2b2844c207259e4595c2c6ef0bdf616221b47f
Diameter
40437942
Circumference
127039541.51349
Area
1.2843044028573E+15
Volume
3.4623084635391E+22
Surface area
5.1372176114291E+15
Circumference
127039541.51349
Perimeter
80875884
Area
408806788298841
Diagonal
28593943.005428
Surface area
2452840729793046
Volume
8.2656525972174E+21
Space diagonal
35020285.048762
Perimeter
60656913
Area
1.7701853195316E+14
Altitude
17510142.524381
Surface area
1.7701853195316E+14
Volume
9.741165004041E+20
Height
9531314.3351428