20972691 is an odd 8-digits composite number following 20972690
and preceding 20972692 . In scientific notation, it is written as 2.0972691 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 13656384 positive integers (up to 20972691) that are relatively prime to 20972691.
20972691 has 12 divisors, whose sum is 30998968
The reverse of 20972691 is 19627902
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred seventy-two thousand six hundred ninety-one
Scientific notation
2.0972691 × 10^7
Engineering notation
2.0972691 × 10^6
Prime Factorization
3 × 3 × 43 × 54193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6990897
Product of the distinct prime numbers
The prime factorization of 20972691 is 3 × 3 × 43 × 54193.
Since it has a total of 4 prime factors.
8 , 2 , 4 , 35 , 540 , 362 , 9951 , 8732 , 50573 , 33183 , 673599 , 292259 , 9530555 , 8422567 , 77886894 , 34044476 , 695180395 , 814871818 , 3448118509 , 4340210687
n×2
41945382
n×3
62918073
n×4
83890764
n×5
104863455
n÷2
10486345.5
n÷3
6990897
n÷3
5243172.75
n÷5
4194538.2
n2
439853767781481
n3
9.2249171568668E+21
n4
1.9347133703156E+29
n5
4.0576145689199E+36
2 √n
4579.5950694357
3 √n
275.77277296582
4 √n
67.672705498123
5 √n
29.129352540328
1 , 3 , 9 , 43 , 129 , 387 , 54193 , 162579 , 487737 , 2330299 , 6990897 , 20972691
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
-20972690
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 20972691 can be divided by 12 positive divisors.
The sum of these divisors (counting 20972691) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000000010010010011
3
Ternary
1110110112010100
4
Quaternary
1100000102103
5
Quinary
20332111231
6
Senary
2025303443
8
Octal
120002223
10
Decimal
20972691
12
Duodecimal
7034b83
16
Hexadecimal
1400493
20
Vigesimal
6b1beb
36
Base36
chimr
md5
48154ed260c03adff3d14972149458e2
sha1
f296b5db4e88d879c0d88e459ab0b0b7a2098b01
sha256
a40252f5d2db64cd36787dc271ee4765319e8ce699dae3565afdbf7ffb84aff0
sha512
f445a0fee49612c1bb69a9ce560186194c62d209b5fc5f2d90f7a6586b9479f5fd936b47dc7bcc4a375a86485f22b5537668453dfa1a4586958b582dd4b988a1
ripemd-160
fda91c9e3727d9b8d50be47fc35c1192d76f6b44
Diameter
41945382
Circumference
131775303.94322
Area
1.3818413655161E+15
Volume
3.8641242626649E+22
Surface area
5.5273654620644E+15
Circumference
131775303.94322
Perimeter
83890764
Area
439853767781481
Diagonal
29659864.05166
Surface area
2639122606688886
Volume
9.2249171568668E+21
Space diagonal
36325766.383443
Perimeter
62918073
Area
1.9046226842453E+14
Altitude
18162883.191721
Surface area
1.9046226842453E+14
Volume
1.0871669129174E+21
Height
9886621.3505534