20993978 is an even 8-digits composite number following 20993977
and preceding 20993979 . In scientific notation, it is written as 2.0993978 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 10489824 positive integers (up to 20993978) that are relatively prime to 20993978.
20993978 has 8 divisors, whose sum is 31512468
The reverse of 20993978 is 87939902
Previous prime number is 2053
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred ninety-three thousand nine hundred seventy-eight
Scientific notation
2.0993978 × 10^7
Engineering notation
2.0993978 × 10^6
Prime Factorization
2 × 2053 × 5113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20993978
Product of the distinct prime numbers
The prime factorization of 20993978 is 2 × 2053 × 5113.
Since it has a total of 3 prime factors.
9 , 7 , 58 , 41 , 988 , 308 , 2596 , 4885 , 96968 , 75099 , 880370 , 21173 , 8557188 , 7575272 , 11999044 , 28993342 , 511019136 , 823849156 , 3745964942 , 5386340948
n×2
41987956
n×3
62981934
n×4
83975912
n×5
104969890
n÷2
10496989
n÷3
6997992.6666667
n÷3
5248494.5
n÷5
4198795.6
n2
440747112264484
n3
9.2530351784441E+21
n4
1.9425801696948E+29
n5
4.0782485345809E+36
2 √n
4581.9185937771
3 √n
275.86604330517
4 √n
67.68987068814
5 √n
29.135263321477
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
-20993977
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 20993978 can be divided by 8 positive divisors.
The sum of these divisors (counting 20993978) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000101011110111010
3
Ternary
1110111121022202
4
Quaternary
1100011132322
5
Quinary
20333301403
6
Senary
2025550202
8
Octal
120053672
10
Decimal
20993978
12
Duodecimal
7045362
16
Hexadecimal
14057ba
20
Vigesimal
6b44ii
36
Base36
chz22
md5
4e35a3c33a36f1132d09567b5bb8032d
sha1
55e9546346a6a1f9a36d30b7d01ea6006589ae58
sha256
2018e6eb69c55999816b03516ca21c8c88eb5bad6847d46e152d33c91b50de44
sha512
b92c4c005a3233e65221d5dee443ef3cb675426951a7aaabbe582841e0b72daf116a219b7c28776905224014b86b2bc82766defed7256f411db17a9fb04f1bcf
ripemd-160
3f69b2ba732edf672f9ed18a29c18c69ed7521ad
Diameter
41987956
Circumference
131909054.10885
Area
1.384647889981E+15
Volume
3.8759023120011E+22
Surface area
5.5385915599241E+15
Circumference
131909054.10885
Perimeter
83975912
Area
440747112264484
Diagonal
29689968.415762
Surface area
2644482673586904
Volume
9.2530351784441E+21
Space diagonal
36362636.548983
Perimeter
62981934
Area
1.9084909793284E+14
Altitude
18181318.274492
Surface area
1.9084909793284E+14
Volume
1.0904806535393E+21
Height
9896656.1385875