20994785 is an odd 8-digits composite number following 20994784
and preceding 20994786 . In scientific notation, it is written as 2.0994785 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 14170464 positive integers (up to 20994785) that are relatively prime to 20994785.
20994785 has 16 divisors, whose sum is 25067520
The reverse of 20994785 is 58749902
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred ninety-four thousand seven hundred eighty-five
Scientific notation
2.0994785 × 10^7
Engineering notation
2.0994785 × 10^6
Prime Factorization
7 × 35 × 67 × 1279
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20994785
Product of the distinct prime numbers
The prime factorization of 20994785 is 7 × 35 × 67 × 1279.
Since it has a total of 4 prime factors.
8 , 1 , 34 , 16 , 885 , 560 , 120 , 1318 , 72622 , 9707 , 824268 , 251312 , 204443 , 7386526 , 35598266 , 37887261 , 823223869 , 326807075 , 113415287 , 3029880587
n×2
41989570
n×3
62984355
n×4
83979140
n×5
104973925
n÷2
10497392.5
n÷3
6998261.6666667
n÷3
5248696.25
n÷5
4198957
n2
440780997196225
n3
9.2541022682203E+21
n4
1.942878874893E+29
n5
4.079032425942E+36
2 √n
4582.0066564771
3 √n
275.86957798615
4 √n
67.690521171557
5 √n
29.135487307574
1 , 7 , 35 , 67 , 245 , 469 , 1279 , 2345 , 8953 , 16415 , 44765 , 85693 , 313355 , 599851 , 2999255 , 20994785
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20994784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20994785 can be divided by 16 positive divisors.
The sum of these divisors (counting 20994785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101101011100001
3
Ternary
1110111122102122
4
Quaternary
1100011223201
5
Quinary
20333313120
6
Senary
2025554025
8
Octal
120055341
10
Decimal
20994785
12
Duodecimal
7045915
16
Hexadecimal
1405ae1
20
Vigesimal
6b46j5
36
Base36
chzoh
md5
449970934714e778ac6a9b7f1244c6d0
sha1
a740753da34839ed048c32823aa86c5f16bcb456
sha256
d7b25604c4ec2697278dfae1a8ee32a38f37663764da91bae7770b8b330f6972
sha512
598eaf104d50cfd7c2b53a71327a1815b9d064f8149ba91992027db525135aa408b6413c8a2dbe8ea6be74f7e89617502b3069711368240b7d3db0b6437681fe
ripemd-160
b8149b91e31b89d8d00a743ab78e388d5a0e23a2
Diameter
41989570
Circumference
131914124.63939
Area
1.3847543426336E+15
Volume
3.8763492935213E+22
Surface area
5.5390173705346E+15
Circumference
131914124.63939
Perimeter
83979140
Area
440780997196225
Diagonal
29691109.686107
Surface area
2644685983177350
Volume
9.2541022682203E+21
Space diagonal
36364034.313985
Perimeter
62984355
Area
1.9086377053868E+14
Altitude
18182017.156992
Surface area
1.9086377053868E+14
Volume
1.0906064112754E+21
Height
9897036.5620357