20971587 is an odd 8-digits composite number following 20971586
and preceding 20971588 . In scientific notation, it is written as 2.0971587 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 11061792 positive integers (up to 20971587) that are relatively prime to 20971587.
20971587 has 8 divisors, whose sum is 23660560
The reverse of 20971587 is 78517902
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred seventy-one thousand five hundred eighty-seven
Scientific notation
2.0971587 × 10^7
Engineering notation
2.0971587 × 10^6
Prime Factorization
21 × 13 × 76819
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20971587
Product of the distinct prime numbers
The prime factorization of 20971587 is 21 × 13 × 76819.
Since it has a total of 3 prime factors.
10 , 9 , 37 , 58 , 1 , 829 , 1225 , 3284 , 41919 , 83107 , 510715 , 586520 , 805219 , 1764344 , 20656854 , 89075648 , 176369930 , 242717097 , 7982035597 , 1635902837
n×2
41943174
n×3
62914761
n×4
83886348
n×5
104857935
n÷2
10485793.5
n÷3
6990529
n÷3
5242896.75
n÷5
4194317.4
n2
439807461298569
n3
9.2234604378721E+21
n4
1.9343060301389E+29
n5
4.0565467195683E+36
2 √n
4579.4745331752
3 √n
275.76793399874
4 √n
67.671814909718
5 √n
29.129045860729
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
-20971586
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 20971587 can be divided by 8 positive divisors.
The sum of these divisors (counting 20971587) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000000000001000011
3
Ternary
1110110110121110
4
Quaternary
1100000001003
5
Quinary
20332042322
6
Senary
2025254403
8
Octal
120000103
10
Decimal
20971587
12
Duodecimal
7034403
16
Hexadecimal
1400043
20
Vigesimal
6b18j7
36
Base36
chhs3
md5
099f0405aedd82f39eb81609582f56af
sha1
5fce136c04269c0cb0968f971228e18c662f7aeb
sha256
34b56f19e4f6b22f89b4835fe016c040063a91b645b10499653854ea6aebd0a4
sha512
547813f2e6934f83ae57f01c12fedbc86cbf7899aebe6ae69da54b4485c1edf3714371c3cd149f7fb727da7cca14d5e5205d6c7880058c7c8df6e6738fad0c92
ripemd-160
9c3d38f12eae8b9a129097a343294cfd1edd7315
Diameter
41943174
Circumference
131768367.30664
Area
1.3816958894096E+15
Volume
3.8635140736393E+22
Surface area
5.5267835576382E+15
Circumference
131768367.30664
Perimeter
83886348
Area
439807461298569
Diagonal
29658302.759887
Surface area
2638844767791414
Volume
9.2234604378721E+21
Space diagonal
36323854.199351
Perimeter
62914761
Area
1.9044221712925E+14
Altitude
18161927.099675
Surface area
1.9044221712925E+14
Volume
1.0869952369375E+21
Height
9886100.9199624