20769987 is an odd 8-digits composite number following 20769986
and preceding 20769988 . In scientific notation, it is written as 2.0769987 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 11547360 positive integers (up to 20769987) that are relatively prime to 20769987.
20769987 has 16 divisors, whose sum is 32506112
The reverse of 20769987 is 78996702
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty million seven hundred sixty-nine thousand nine hundred eighty-seven
Scientific notation
2.0769987 × 10^7
Engineering notation
2.0769987 × 10^6
Prime Factorization
3 × 7 × 37 × 26731
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20769987
Product of the distinct prime numbers
The prime factorization of 20769987 is 3 × 7 × 37 × 26731.
Since it has a total of 4 prime factors.
5 , 8 , 59 , 20 , 788 , 244 , 4797 , 2437 , 12445 , 2074 , 421387 , 844565 , 1251208 , 826922 , 36440767 , 97251157 , 158924094 , 841513557 , 5965247722 , 3737972706
n×2
41539974
n×3
62309961
n×4
83079948
n×5
103849935
n÷2
10384993.5
n÷3
6923329
n÷3
5192496.75
n÷5
4153997.4
n2
431392359980169
n3
8.9600137086874E+21
n4
1.8609936824926E+29
n5
3.8652814592453E+36
2 √n
4557.4101197939
3 √n
274.88143428742
4 √n
67.508592933003
5 √n
29.07282572444
1 , 3 , 7 , 21 , 37 , 111 , 259 , 777 , 26731 , 80193 , 187117 , 561351 , 989047 , 2967141 , 6923329 , 20769987
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
-20769986
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 20769987 can be divided by 16 positive divisors.
The sum of these divisors (counting 20769987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111001110110011000011
3
Ternary
1110002020001210
4
Quaternary
1033032303003
5
Quinary
20304114422
6
Senary
2021101203
8
Octal
117166303
10
Decimal
20769987
12
Duodecimal
6b57803
16
Hexadecimal
13cecc3
20
Vigesimal
69g4j7
36
Base36
cd683
md5
ef352e2eb3ab452d469e043b86f4b7d4
sha1
709ae742d8c8ec2e4e65e0842827bac75bb8d0f6
sha256
3284c6d1b27e31c7356ffe04dd05684579c9f9a144aa0ce505800416db9d6fec
sha512
1cbc7d3c76808b1c033b483ed47f64d58332b56b1f11b915855b4ddd452b6192d0ba16187d946358b46549a100622a791024f7cd1276aa8e2215b5b9c378e0e9
ripemd-160
a679d70a9debd2df608ce7a0d9c58a137c729b68
Diameter
41539974
Circumference
130501677.14871
Area
1.3552590689285E+15
Volume
3.7531617657702E+22
Surface area
5.4210362757138E+15
Circumference
130501677.14871
Perimeter
83079948
Area
431392359980169
Diagonal
29373197.305713
Surface area
2588354159881014
Volume
8.9600137086874E+21
Space diagonal
35974672.756545
Perimeter
62309961
Area
1.8679837137067E+14
Altitude
17987336.378273
Surface area
1.8679837137067E+14
Volume
1.0559477421562E+21
Height
9791065.768571