20971385 is an odd 8-digits composite number following 20971384
and preceding 20971386 . In scientific notation, it is written as 2.0971385 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 16777104 positive integers (up to 20971385) that are relatively prime to 20971385.
20971385 has 4 divisors, whose sum is 25165668
The reverse of 20971385 is 58317902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred seventy-one thousand three hundred eighty-five
Scientific notation
2.0971385 × 10^7
Engineering notation
2.0971385 × 10^6
Prime Factorization
5 × 4194277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20971385
Product of the distinct prime numbers
The prime factorization of 20971385 is 5 × 4194277.
Since it has a total of 2 prime factors.
2 , 8 , 32 , 61 , 827 , 280 , 1961 , 9754 , 46317 , 18840 , 651131 , 589240 , 631866 , 8690618 , 80409554 , 57744599 , 94557908 , 392413194 , 2976598265 , 2215037606
n×2
41942770
n×3
62914155
n×4
83885540
n×5
104856925
n÷2
10485692.5
n÷3
6990461.6666667
n÷3
5242846.25
n÷5
4194277
n2
439798988818225
n3
9.2231939171177E+21
n4
1.9342315056553E+29
n5
4.0563513584228E+36
2 √n
4579.4524781899
3 √n
275.76704858965
4 √n
67.671651954049
5 √n
29.128989745854
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
-20971384
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 20971385 can be divided by 4 positive divisors.
The sum of these divisors (counting 20971385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111111111101111001
3
Ternary
1110110110022222
4
Quaternary
1033333331321
5
Quinary
20332041020
6
Senary
2025253425
8
Octal
117777571
10
Decimal
20971385
12
Duodecimal
7034275
16
Hexadecimal
13fff79
20
Vigesimal
6b1895
36
Base36
chhmh
md5
7ede4bf4a8108e4b4f751557336e2b00
sha1
9e4e803b38eb9a2a30427af206ce2a705690a0ff
sha256
18195d9a92555c4e4dc7751bac467f11e1737688020228747ad231d909ef7dd7
sha512
df6bf2fe9bf1c97c1ad8cba221d208642bf15979f09398c5a2c7248d78c5ef711da3d38c65eba4f9234360273fb6a8991e7c19672e7f76715b90474457cc8976
ripemd-160
4d6868577acdb70fec92035657bf5f87ca6afa06
Diameter
41942770
Circumference
131767098.10321
Area
1.3816692723276E+15
Volume
3.8634024336868E+22
Surface area
5.5266770893102E+15
Circumference
131767098.10321
Perimeter
83885540
Area
439798988818225
Diagonal
29658017.088748
Surface area
2638793932909350
Volume
9.2231939171177E+21
Space diagonal
36323504.325088
Perimeter
62914155
Area
1.9043854843765E+14
Altitude
18161752.162544
Surface area
1.9043854843765E+14
Volume
1.0869638271654E+21
Height
9886005.6962492