20687620 is an even 8-digits composite number following 20687619
and preceding 20687621 . In scientific notation, it is written as 2.0687620 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 8275040 positive integers (up to 20687620) that are relatively prime to 20687620.
20687620 has 12 divisors, whose sum is 43444044
The reverse of 20687620 is 02678602
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-seven thousand six hundred twenty
Scientific notation
2.0687620 × 10^7
Engineering notation
2.0687620 × 10^6
Prime Factorization
2 × 2 × 5 × 1034381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10343810
Product of the distinct prime numbers
The prime factorization of 20687620 is 2 × 2 × 5 × 1034381.
Since it has a total of 4 prime factors.
9 , 7 , 6 , 84 , 990 , 957 , 6867 , 7079 , 23635 , 15421 , 222011 , 505161 , 606802 , 8283396 , 64580043 , 83147025 , 69589641 , 857744924 , 4096942594 , 9939813560
n×2
41375240
n×3
62062860
n×4
82750480
n×5
103438100
n÷2
10343810
n÷3
6895873.3333333
n÷3
5171905
n÷5
4137524
n2
427977621264400
n3
8.8538383972218E+21
n4
1.8316484430313E+29
n5
3.7892446963024E+36
2 √n
4548.364541239
3 √n
274.51758950241
4 √n
67.441563899712
5 √n
29.049730389359
1 , 2 , 4 , 5 , 10 , 20 , 1034381 , 2068762 , 4137524 , 5171905 , 10343810 , 20687620
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687620 can be divided by 12 positive divisors.
The sum of these divisors (counting 20687620) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010101100000100
3
Ternary
1102221001002011
4
Quaternary
1032322230010
5
Quinary
20244000440
6
Senary
2015224004
8
Octal
116725404
10
Decimal
20687620
12
Duodecimal
6b18004
16
Hexadecimal
13bab04
20
Vigesimal
695j10
36
Base36
cbeo4
md5
ef17483f44a0097b670e5fa0c8ba73f2
sha1
1a75f53f8810c3cb6f5f4edec079dd47f9c00e84
sha256
e67937fcc6ce4753f3f31be278d62d95a70fff18285dd3af601e89ebe7249952
sha512
582d8adb595b001a901699ff802f8d08037cec4011ba977451a74a39b208752fcbb5fa084e6ffe237d2492124bd12130c1e9a3831e217e7725e571170e296edc
ripemd-160
c6e9878a2e91a85a3b9c2bb8cea4caaa0a943301
Diameter
41375240
Circumference
129984150.02451
Area
1.3445313508651E+15
Volume
3.7086871553044E+22
Surface area
5.3781254034603E+15
Circumference
129984150.02451
Perimeter
82750480
Area
427977621264400
Diagonal
29256712.777221
Surface area
2567865727586400
Volume
8.8538383972218E+21
Space diagonal
35832008.927678
Perimeter
62062860
Area
1.853197461331E+14
Altitude
17916004.463839
Surface area
1.853197461331E+14
Volume
1.0434348617009E+21
Height
9752237.592407