20689851 is an odd 8-digits composite number following 20689850
and preceding 20689852 . In scientific notation, it is written as 2.0689851 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 10913184 positive integers (up to 20689851) that are relatively prime to 20689851.
20689851 has 8 divisors, whose sum is 27889984
The reverse of 20689851 is 15898602
Previous prime number is 91
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred eighty-nine thousand eight hundred fifty-one
Scientific notation
2.0689851 × 10^7
Engineering notation
2.0689851 × 10^6
Prime Factorization
3 × 91 × 75787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20689851
Product of the distinct prime numbers
The prime factorization of 20689851 is 3 × 91 × 75787.
Since it has a total of 3 prime factors.
7 , 1 , 6 , 10 , 799 , 673 , 5908 , 5675 , 86668 , 34331 , 410957 , 653407 , 6429075 , 7017666 , 71206675 , 59300594 , 181030272 , 961596711 , 5461937302 , 4369782003
n×2
41379702
n×3
62069553
n×4
82759404
n×5
103449255
n÷2
10344925.5
n÷3
6896617
n÷3
5172462.75
n÷5
4137970.2
n2
428069934402201
n3
8.8567031603613E+21
n4
1.832438687391E+29
n5
3.7912883408756E+36
2 √n
4548.6097876164
3 √n
274.52745734813
4 √n
67.443382089101
5 √n
29.050356920135
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
-20689850
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 20689851 can be divided by 8 positive divisors.
The sum of these divisors (counting 20689851) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011001110111011
3
Ternary
1102221011010210
4
Quaternary
1032323032323
5
Quinary
20244033401
6
Senary
2015242203
8
Octal
116731673
10
Decimal
20689851
12
Duodecimal
6b19363
16
Hexadecimal
13bb3bb
20
Vigesimal
6964cb
36
Base36
cbge3
md5
aec145bcfb1cf3a071a3f8cf6688b7c5
sha1
b6b95592e91433af19632d2009749a5f52506591
sha256
05c4e7bf205a17331082430d1c6f40533d92e238d9ef7a32908bb7e6a64036cb
sha512
fa5165f21e9d3dfac08775fb573042e015a3bdb548a12bf1282992e3f92f0613a1f45960bcf9a87a9b60546096d31fc934e9e02db92ff899fbe3e03a2b23227d
ripemd-160
39ebcfc62c20e4f61b13f0e85c786b65129eb008
Diameter
41379702
Circumference
129998167.81093
Area
1.3448213611406E+15
Volume
3.7098871444822E+22
Surface area
5.3792854445625E+15
Circumference
129998167.81093
Perimeter
82759404
Area
428069934402201
Diagonal
29259867.887679
Surface area
2568419606413206
Volume
8.8567031603613E+21
Space diagonal
35835873.13303
Perimeter
62069553
Area
1.8535971889432E+14
Altitude
17917936.566515
Surface area
1.8535971889432E+14
Volume
1.0437724772746E+21
Height
9753289.2958928