20971540 is an even 8-digits composite number following 20971539
and preceding 20971541 . In scientific notation, it is written as 2.0971540 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors.
There are 7895040 positive integers (up to 20971540) that are relatively prime to 20971540.
20971540 has 24 divisors, whose sum is 46631592
The reverse of 20971540 is 04517902
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred seventy-one thousand five hundred forty
Scientific notation
2.0971540 × 10^7
Engineering notation
2.0971540 × 10^6
Prime Factorization
2 × 2 × 5 × 17 × 61681
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10485770
Product of the distinct prime numbers
The prime factorization of 20971540 is 2 × 2 × 5 × 17 × 61681.
Since it has a total of 5 prime factors.
4 , 1 , 44 , 80 , 525 , 324 , 7515 , 9432 , 17467 , 5717 , 612250 , 17440 , 6192374 , 4218181 , 21191723 , 56778066 , 372746969 , 53557561 , 5959406512 , 3328543128
n×2
41943080
n×3
62914620
n×4
83886160
n×5
104857700
n÷2
10485770
n÷3
6990513.3333333
n÷3
5242885
n÷5
4194308
n2
439805489971600
n3
9.223398425159E+21
n4
1.9342886900916E+29
n5
4.0565012635803E+36
2 √n
4579.4694015792
3 √n
275.76772798823
4 √n
67.671776994395
5 √n
29.129032804336
1 , 2 , 4 , 5 , 10 , 17 , 20 , 34 , 68 , 85 , 170 , 340 , 61681 , 123362 , 246724 , 308405 , 616810 , 1048577 , 1233620 , 2097154 , 4194308 , 5242885 , 10485770 , 20971540
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971539
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971540 can be divided by 24 positive divisors.
The sum of these divisors (counting 20971540) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000000000000010100
3
Ternary
1110110110112201
4
Quaternary
1100000000110
5
Quinary
20332042130
6
Senary
2025254244
8
Octal
120000024
10
Decimal
20971540
12
Duodecimal
7034384
16
Hexadecimal
1400014
20
Vigesimal
6b18h0
36
Base36
chhqs
md5
c4ee4c9840b69df34563fa7ea40896b0
sha1
8eeeb640cc97435ba9d7d3add3976d8acbfc0d7b
sha256
9c72fd55df437754d4b60d3339df3f65363828993009d7e37af21467dd61c447
sha512
057338eb2030a57a93f7f753cc2ec5752590f556b601e019ba2f722f1a456f3afd0e7ffbc686c320be537944c927db52bb6514d421e8ade55d9693c2bd1c9317
ripemd-160
f832780c527cde32f7db9eb265c64b97d273b6f3
Diameter
41943080
Circumference
131768071.99693
Area
1.3816896963032E+15
Volume
3.8634880978148E+22
Surface area
5.526758785213E+15
Circumference
131768071.99693
Perimeter
83886160
Area
439805489971600
Diagonal
29658236.29185
Surface area
2638832939829600
Volume
9.223398425159E+21
Space diagonal
36323772.792963
Perimeter
62914620
Area
1.9044136351963E+14
Altitude
18161886.396482
Surface area
1.9044136351963E+14
Volume
1.0869879286692E+21
Height
9886078.76395