20687551 is an odd 8-digits composite number following 20687550
and preceding 20687552 . In scientific notation, it is written as 2.0687551 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20128392 positive integers (up to 20687551) that are relatively prime to 20687551.
20687551 has 4 divisors, whose sum is 21246712
The reverse of 20687551 is 15578602
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred eighty-seven thousand five hundred fifty-one
Scientific notation
2.0687551 × 10^7
Engineering notation
2.0687551 × 10^6
Prime Factorization
37 × 559123
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20687551
Product of the distinct prime numbers
The prime factorization of 20687551 is 37 × 559123.
Since it has a total of 2 prime factors.
4 , 10 , 46 , 68 , 114 , 96 , 1915 , 5740 , 68946 , 11989 , 409973 , 885697 , 7110928 , 1529315 , 60652874 , 10055145 , 315138877 , 15535184 , 1296907421 , 1310102603
n×2
41375102
n×3
62062653
n×4
82750204
n×5
103437755
n÷2
10343775.5
n÷3
6895850.3333333
n÷3
5171887.75
n÷5
4137510.2
n2
427974766377601
n3
8.8537498061497E+21
n4
1.8316240065596E+29
n5
3.7891815048527E+36
2 √n
4548.3569560886
3 √n
274.51728429999
4 √n
67.441507664706
5 √n
29.049711011257
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687550
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687551 can be divided by 4 positive divisors.
The sum of these divisors (counting 20687551) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010101010111111
3
Ternary
1102221000222121
4
Quaternary
1032322222333
5
Quinary
20244000201
6
Senary
2015223411
8
Octal
116725277
10
Decimal
20687551
12
Duodecimal
6b17b67
16
Hexadecimal
13baabf
20
Vigesimal
695ihb
36
Base36
cbem7
md5
42fe3336142f68a80efe37a87f1b9abf
sha1
eca91f5b1e7d4deb89964fad2c6c7f57cde7c50e
sha256
00f621d75f2c60765d1bdd3e1ad98b5449ae0f317c78da078f563ae709d04839
sha512
dca95baf2fafdf8f26132ac3116ccfeb0f63d6f564ff2ea89cb946aca1f59245975e0db09f8f05f04cb18ce409bb474d872ff5639dfdfe156bf1bdfe71ebb362
ripemd-160
a474ccaafe0a9fc1e53c1b186ceab31fe7b128d1
Diameter
41375102
Circumference
129983716.48473
Area
1.3445223819737E+15
Volume
3.7086500463629E+22
Surface area
5.3780895278947E+15
Circumference
129983716.48473
Perimeter
82750204
Area
427974766377601
Diagonal
29256615.196485
Surface area
2567848598265606
Volume
8.8537498061497E+21
Space diagonal
35831889.416172
Perimeter
62062653
Area
1.8531850993086E+14
Altitude
17915944.708086
Surface area
1.8531850993086E+14
Volume
1.0434244211429E+21
Height
9752205.065495