20921171 is an odd 8-digits composite number following 20921170
and preceding 20921172 . In scientific notation, it is written as 2.0921171 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20872200 positive integers (up to 20921171) that are relatively prime to 20921171.
20921171 has 4 divisors, whose sum is 20970144
The reverse of 20921171 is 17112902
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million nine hundred twenty-one thousand one hundred seventy-one
Scientific notation
2.0921171 × 10^7
Engineering notation
2.0921171 × 10^6
Prime Factorization
431 × 48541
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921171
Product of the distinct prime numbers
The prime factorization of 20921171 is 431 × 48541.
Since it has a total of 2 prime factors.
1 , 10 , 51 , 55 , 537 , 789 , 5868 , 1896 , 59499 , 5277 , 589540 , 293799 , 6853012 , 8240560 , 21199831 , 61973182 , 310709765 , 199697676 , 4726607296 , 53684375
n×2
41842342
n×3
62763513
n×4
83684684
n×5
104605855
n÷2
10460585.5
n÷3
6973723.6666667
n÷3
5230292.75
n÷5
4184234.2
n2
437695396011241
n3
9.1571002258639E+21
n4
1.9157725968944E+29
n5
4.0080206096741E+36
2 √n
4573.9666592576
3 √n
275.54677330544
4 √n
67.631107186395
5 √n
29.115027043727
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
-20921170
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 20921171 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921171) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101101010011
3
Ternary
1110100220110012
4
Quaternary
1033303231103
5
Quinary
20323434141
6
Senary
2024225135
8
Octal
117635523
10
Decimal
20921171
12
Duodecimal
700b1ab
16
Hexadecimal
13f3b53
20
Vigesimal
6af2ib
36
Base36
cgevn
md5
24df60e706cbc8ffaa2e7fdf4ea214fe
sha1
40ca5db2fb0cb7a2e7be7840545681e293ba25c5
sha256
9da5e7a32b4bb79b7a2b0cab3236a6300ffb21e6a738bd31e2ff260982ec4a7b
sha512
88cfe6de268887478e2ac5ec52f03f665543028420377eee85bfe522beb3dd0d5a793ca078359c3592be51518c0ef7243b9d08a320b08ebb2f744dd6641abe22
ripemd-160
8cc7c0f77527cdccf51801f4b9cf17f5e53d2e06
Diameter
41842342
Circumference
131451594.23619
Area
1.375060640619E+15
Volume
3.8357171730346E+22
Surface area
5.500242562476E+15
Circumference
131451594.23619
Perimeter
83684684
Area
437695396011241
Diagonal
29587003.768927
Surface area
2626172376067446
Volume
9.1571002258639E+21
Space diagonal
36236531.125837
Perimeter
62763513
Area
1.8952766603261E+14
Altitude
18118265.562918
Surface area
1.8952766603261E+14
Volume
1.0791746109522E+21
Height
9862334.5896422