20806972 is an even 8-digits composite number following 20806971
and preceding 20806973 . In scientific notation, it is written as 2.0806972 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 10388000 positive integers (up to 20806972) that are relatively prime to 20806972.
20806972 has 12 divisors, whose sum is 36466416
The reverse of 20806972 is 27960802
Previous prime number is 743
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eight hundred six thousand nine hundred seventy-two
Scientific notation
2.0806972 × 10^7
Engineering notation
2.0806972 × 10^6
Prime Factorization
2 × 2 × 743 × 7001
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10403486
Product of the distinct prime numbers
The prime factorization of 20806972 is 2 × 2 × 743 × 7001.
Since it has a total of 4 prime factors.
4 , 3 , 6 , 40 , 738 , 197 , 7831 , 8506 , 21180 , 58671 , 429179 , 182366 , 1599631 , 9464525 , 80639447 , 55769624 , 854640608 , 65200083 , 7008788427 , 1884649389
n×2
41613944
n×3
62420916
n×4
83227888
n×5
104034860
n÷2
10403486
n÷3
6935657.3333333
n÷3
5201743
n÷5
4161394.4
n2
432930083808784
n3
9.007964131767E+21
n4
1.8742845746668E+29
n5
3.8998186665124E+36
2 √n
4561.4659924195
3 √n
275.04449748271
4 √n
67.538625929312
5 √n
29.083172321132
1 , 2 , 4 , 743 , 1486 , 2972 , 7001 , 14002 , 28004 , 5201743 , 10403486 , 20806972
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20806971
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20806972 can be divided by 12 positive divisors.
The sum of these divisors (counting 20806972) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010111110100111100
3
Ternary
1110011002210121
4
Quaternary
1033113310330
5
Quinary
20311310342
6
Senary
2021544324
8
Octal
117276474
10
Decimal
20806972
12
Duodecimal
6b750a4
16
Hexadecimal
13d7d3c
20
Vigesimal
6a0h8c
36
Base36
cdyrg
md5
ed07170c79c10b821dbe571b828da4c6
sha1
b3d4d502909b4322bce19b0dd83259f953bd839b
sha256
9342fdf94aab5bf69e2920904f4ea08d8b817dba9fa775acaf9dc1400453cece
sha512
f41d351281b24631908a4e8f589155ad757aeeb65d125f58a078be8266ce432d5864e714005d4e4bba26486f62be6a5006d4fd86fddce0e34530403d5070eb56
ripemd-160
59c75503cd998766831d76a923b46093fa93ca4c
Diameter
41613944
Circumference
130734060.7573
Area
1.3600899708117E+15
Volume
3.7732471920213E+22
Surface area
5.4403598832468E+15
Circumference
130734060.7573
Perimeter
83227888
Area
432930083808784
Diagonal
29425501.994317
Surface area
2597580502852704
Volume
9.007964131767E+21
Space diagonal
36038732.655663
Perimeter
62420916
Area
1.8746422532047E+14
Altitude
18019366.327832
Surface area
1.8746422532047E+14
Volume
1.0615987537096E+21
Height
9808500.6647724