20807897 is an odd 8-digits composite number following 20807896
and preceding 20807898 . In scientific notation, it is written as 2.0807897 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 18916260 positive integers (up to 20807897) that are relatively prime to 20807897.
20807897 has 4 divisors, whose sum is 22699536
The reverse of 20807897 is 79870802
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million eight hundred seven thousand eight hundred ninety-seven
Scientific notation
2.0807897 × 10^7
Engineering notation
2.0807897 × 10^6
Prime Factorization
11 × 1891627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20807897
Product of the distinct prime numbers
The prime factorization of 20807897 is 11 × 1891627.
Since it has a total of 2 prime factors.
10 , 8 , 72 , 67 , 347 , 192 , 8839 , 3932 , 21029 , 23184 , 664713 , 294654 , 223388 , 9093447 , 7551461 , 19430664 , 45750801 , 851337745 , 2854949336 , 3380258876
n×2
41615794
n×3
62423691
n×4
83231588
n×5
104039485
n÷2
10403948.5
n÷3
6935965.6666667
n÷3
5201974.25
n÷5
4161579.4
n2
432968577562609
n3
9.0091655661593E+21
n4
1.8746178915659E+29
n5
3.900685600206E+36
2 √n
4561.5673841345
3 √n
275.04857323819
4 √n
67.53937654535
5 √n
29.083430902304
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
-20807896
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 20807897 can be divided by 4 positive divisors.
The sum of these divisors (counting 20807897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000000011011001
3
Ternary
1110011011001212
4
Quaternary
1033120003121
5
Quinary
20311323042
6
Senary
2021552505
8
Octal
117300331
10
Decimal
20807897
12
Duodecimal
6b75735
16
Hexadecimal
13d80d9
20
Vigesimal
6a0jeh
36
Base36
cdzh5
md5
d166d63f0677278be64f1dc90fe07281
sha1
1fd1f6b417e78640619368d854671f63bfbd08e5
sha256
4d731d2fe7d369fe6e854d4b9fb1230f5b0ac146e310fae1703720c427d11dac
sha512
844e1e8483e8b6b8014bac00a4406e41223d1c8b806da254e6c9e0ecfb3f91b826135015ce03a0eb8920ce67a6c9f3ae93df06d73a77cbd73526577bac1f0d21
ripemd-160
ddeef05c1488da48493959aa6b778d91ece49965
Diameter
41615794
Circumference
130739872.70371
Area
1.3602109025059E+15
Volume
3.7737504476827E+22
Surface area
5.4408436100237E+15
Circumference
130739872.70371
Perimeter
83231588
Area
432968577562609
Diagonal
29426810.141862
Surface area
2597811465375654
Volume
9.0091655661593E+21
Space diagonal
36040334.80266
Perimeter
62423691
Area
1.8748089360482E+14
Altitude
18020167.40133
Surface area
1.8748089360482E+14
Volume
1.0617403441106E+21
Height
9808936.7139541