20807745 is an odd 8-digits composite number following 20807744
and preceding 20807746 . In scientific notation, it is written as 2.0807745 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 8951808 positive integers (up to 20807745) that are relatively prime to 20807745.
20807745 has 8 divisors, whose sum is 22383360
The reverse of 20807745 is 54770802
Previous prime number is 119
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred seven thousand seven hundred forty-five
Scientific notation
2.0807745 × 10^7
Engineering notation
2.0807745 × 10^6
Prime Factorization
15 × 119 × 11657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20807745
Product of the distinct prime numbers
The prime factorization of 20807745 is 15 × 119 × 11657.
Since it has a total of 3 prime factors.
9 , 1 , 4 , 98 , 242 , 741 , 7486 , 9939 , 73412 , 98919 , 962893 , 813878 , 5185960 , 3955169 , 82643729 , 75418642 , 688541901 , 592972259 , 1687352736 , 3706467323
n×2
41615490
n×3
62423235
n×4
83230980
n×5
104038725
n÷2
10403872.5
n÷3
6935915
n÷3
5201936.25
n÷5
4161549
n2
432962251985025
n3
9.0089681339301E+21
n4
1.8745631164394E+29
n5
3.9005431313277E+36
2 √n
4561.5507231642
3 √n
275.04790350072
4 √n
67.539253202595
5 √n
29.08338841176
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
-20807744
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 20807745 can be divided by 8 positive divisors.
The sum of these divisors (counting 20807745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000000001000001
3
Ternary
1110011010212020
4
Quaternary
1033120001001
5
Quinary
20311321440
6
Senary
2021552053
8
Octal
117300101
10
Decimal
20807745
12
Duodecimal
6b75629
16
Hexadecimal
13d8041
20
Vigesimal
6a0j75
36
Base36
cdzcx
md5
34e9c4e2e4f32663d2f540613be7904d
sha1
df241d3587d81c38dea544240d8b6359c42f7756
sha256
7b6737fa38df6adef97e294bb0c8cef2dc1d44ad214b49bfb7a732005b267b76
sha512
b170ef62ebbbacbe1f1eeafc3a802573ca55a1f6b366118c1b0c45a9b043ef5ec429fc1fee259797f552d7b11c17c85b8afe9e3471397c997a1a9c4c1cdfc8c1
ripemd-160
4f7afc906d03c6d4b68bd5e17af68dc9504e19fb
Diameter
41615490
Circumference
130738917.65954
Area
1.3601910301178E+15
Volume
3.7736677474639E+22
Surface area
5.4407641204714E+15
Circumference
130738917.65954
Perimeter
83230980
Area
432962251985025
Diagonal
29426595.181401
Surface area
2597773511910150
Volume
9.0089681339301E+21
Space diagonal
36040071.530937
Perimeter
62423235
Area
1.8747815454938E+14
Altitude
18020035.765469
Surface area
1.8747815454938E+14
Volume
1.0617170764993E+21
Height
9808865.060467