20721814 is an even 8-digits composite number following 20721813
and preceding 20721815 . In scientific notation, it is written as 2.0721814 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10360906 positive integers (up to 20721814) that are relatively prime to 20721814.
20721814 has 4 divisors, whose sum is 31082724
The reverse of 20721814 is 41812702
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million seven hundred twenty-one thousand eight hundred fourteen
Scientific notation
2.0721814 × 10^7
Engineering notation
2.0721814 × 10^6
Prime Factorization
2 × 10360907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20721814
Product of the distinct prime numbers
The prime factorization of 20721814 is 2 × 10360907.
Since it has a total of 2 prime factors.
7 , 5 , 37 , 63 , 318 , 500 , 1173 , 8735 , 99602 , 30654 , 928120 , 888666 , 511298 , 5911684 , 96292360 , 26355389 , 420592674 , 773126864 , 6909158697 , 253627675
n×2
41443628
n×3
62165442
n×4
82887256
n×5
103609070
n÷2
10360907
n÷3
6907271.3333333
n÷3
5180453.5
n÷5
4144362.8
n2
429393575450596
n3
8.8978138032822E+21
n4
1.8437884263825E+29
n5
3.820664082685E+36
2 √n
4552.121922796
3 √n
274.66875378071
4 √n
67.469414721013
5 √n
29.059327147175
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
-20721813
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 20721814 can be divided by 4 positive divisors.
The sum of these divisors (counting 20721814) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000011000010010110
3
Ternary
1102222202222121
4
Quaternary
1033003002112
5
Quinary
20301044224
6
Senary
2020050154
8
Octal
117030226
10
Decimal
20721814
12
Duodecimal
6b3395a
16
Hexadecimal
13c3096
20
Vigesimal
69a4ae
36
Base36
cc51y
md5
0153901f81ff5048f4df4e42e24973b7
sha1
2839a847fb493a4e1ec56a78cad9a374161ce600
sha256
f86ee169833bbc2495c50702ef982a719cc957cbd2275ae58cc1fb4dd4164496
sha512
708515ad6335e8f5f91d293471d8e5c8d98d6fa65f8c177a22ba4efb40b09f8914484a264f9526d9a1e863a2b0be0c24f5c99dbc57841d1135dd00a9b96e9ef5
ripemd-160
eed1093d792eecd4009a6460c21e9d3613bce252
Diameter
41443628
Circumference
130198997.26291
Area
1.3489797021342E+15
Volume
3.7271075303202E+22
Surface area
5.395918808537E+15
Circumference
130198997.26291
Perimeter
82887256
Area
429393575450596
Diagonal
29305070.395773
Surface area
2576361452703576
Volume
8.8978138032822E+21
Space diagonal
35891234.672992
Perimeter
62165442
Area
1.8593287228102E+14
Altitude
17945617.336496
Surface area
1.8593287228102E+14
Volume
1.048617413006E+21
Height
9768356.7985909