20971421 is an odd 8-digits composite number following 20971420
and preceding 20971422 . In scientific notation, it is written as 2.0971421 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 18698688 positive integers (up to 20971421) that are relatively prime to 20971421.
20971421 has 8 divisors, whose sum is 23374080
The reverse of 20971421 is 12417902
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million nine hundred seventy-one thousand four hundred twenty-one
Scientific notation
2.0971421 × 10^7
Engineering notation
2.0971421 × 10^6
Prime Factorization
17 × 19 × 64927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20971421
Product of the distinct prime numbers
The prime factorization of 20971421 is 17 × 19 × 64927.
Since it has a total of 3 prime factors.
5 , 6 , 96 , 54 , 391 , 496 , 6588 , 7186 , 54715 , 74121 , 497410 , 727092 , 4898644 , 8760314 , 1861270 , 22099474 , 303332950 , 697661408 , 1528567599 , 3509467972
n×2
41942842
n×3
62914263
n×4
83885684
n×5
104857105
n÷2
10485710.5
n÷3
6990473.6666667
n÷3
5242855.25
n÷5
4194284.2
n2
439800498759241
n3
9.22324141549E+21
n4
1.9342447870888E+29
n5
4.0563861747094E+36
2 √n
4579.4564087891
3 √n
275.76720638575
4 √n
67.67168099574
5 √n
29.128999746556
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
-20971420
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 20971421 can be divided by 8 positive divisors.
The sum of these divisors (counting 20971421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111111111111110011101
3
Ternary
1110110110101022
4
Quaternary
1033333332131
5
Quinary
20332041141
6
Senary
2025253525
8
Octal
117777635
10
Decimal
20971421
12
Duodecimal
70342a5
16
Hexadecimal
13fff9d
20
Vigesimal
6b18b1
36
Base36
chhnh
md5
93c1d5ddec624fc85a568affb0a4c31a
sha1
09efc7051686cd64bf3493540b96e64e006fb77f
sha256
f5228d3092687d99637897276b9b085a8db3246d4011f50f91b3b63b16339666
sha512
2b69c94958b1699248aea55aaeb111e46a1e55eb80f81a591bcb2aac1720e68604bc26d4827afa4a1b887aeb89108e6014fa98d563f2c028bee3122ac531009c
ripemd-160
edea85f317e94eeab412692053f67a68fd06a503
Diameter
41942842
Circumference
131767324.29788
Area
1.3816740159472E+15
Volume
3.8634223297585E+22
Surface area
5.5266960637886E+15
Circumference
131767324.29788
Perimeter
83885684
Area
439800498759241
Diagonal
29658068.000436
Surface area
2638802992555446
Volume
9.22324141549E+21
Space diagonal
36323566.678917
Perimeter
62914263
Area
1.9043920226128E+14
Altitude
18161783.339458
Surface area
1.9043920226128E+14
Volume
1.0869694249023E+21
Height
9886022.666812