20692981 is an odd 8-digits composite number following 20692980
and preceding 20692982 . In scientific notation, it is written as 2.0692981 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 20370000 positive integers (up to 20692981) that are relatively prime to 20692981.
20692981 has 8 divisors, whose sum is 21018528
The reverse of 20692981 is 18929602
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred ninety-two thousand nine hundred eighty-one
Scientific notation
2.0692981 × 10^7
Engineering notation
2.0692981 × 10^6
Prime Factorization
101 × 211 × 971
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20692981
Product of the distinct prime numbers
The prime factorization of 20692981 is 101 × 211 × 971.
Since it has a total of 3 prime factors.
7 , 5 , 2 , 91 , 708 , 546 , 5084 , 4669 , 29779 , 8652 , 860044 , 874255 , 1066689 , 5818087 , 82077553 , 42951379 , 46409484 , 664894868 , 3767311736 , 4294004915
n×2
41385962
n×3
62078943
n×4
82771924
n×5
103464905
n÷2
10346490.5
n÷3
6897660.3333333
n÷3
5173245.25
n÷5
4138596.2
n2
428199462666361
n3
8.8607233451652E+21
n4
1.8335477982776E+29
n5
3.794156975235E+36
2 √n
4548.9538357737
3 √n
274.54130032867
4 √n
67.445932685179
5 √n
29.051235825598
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
-20692980
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 20692981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20692981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011111111110101
3
Ternary
1102221022102201
4
Quaternary
1032323333311
5
Quinary
20244133411
6
Senary
2015304501
8
Octal
116737765
10
Decimal
20692981
12
Duodecimal
6b1b131
16
Hexadecimal
13bbff5
20
Vigesimal
696c91
36
Base36
cbit1
md5
6dcfcd5117fd6410854c071163a98c79
sha1
728a90048a6fa2601b64ff335e9fd3fbf6966b62
sha256
f768ec26171a43c1d3f05968e6c0b2a071444317ee9717340016fbeda781056b
sha512
ed8236c5a69486fab5be1475586f1e068c1469c5da099985ca99c341d014daea13845dc0c39720fc9f8cce0b4dde3eef3c74fe6092cf20ca5f8a8a06d3d5d8cc
ripemd-160
a4a0bfb005f0f1e25689a823e23ce06189280582
Diameter
41385962
Circumference
130017834.18095
Area
1.3452282861837E+15
Volume
3.711571115555E+22
Surface area
5.3809131447349E+15
Circumference
130017834.18095
Perimeter
82771924
Area
428199462666361
Diagonal
29264294.376129
Surface area
2569196775998166
Volume
8.8607233451652E+21
Space diagonal
35841294.452057
Perimeter
62078943
Area
1.8541580627796E+14
Altitude
17920647.226029
Surface area
1.8541580627796E+14
Volume
1.0442462605974E+21
Height
9754764.7920429