20687005 is an odd 8-digits composite number following 20687004
and preceding 20687006 . In scientific notation, it is written as 2.0687005 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 15281728 positive integers (up to 20687005) that are relatively prime to 20687005.
20687005 has 16 divisors, whose sum is 26801280
The reverse of 20687005 is 50078602
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-seven thousand five
Scientific notation
2.0687005 × 10^7
Engineering notation
2.0687005 × 10^6
Prime Factorization
5 × 23 × 29 × 6203
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20687005
Product of the distinct prime numbers
The prime factorization of 20687005 is 5 × 23 × 29 × 6203.
Since it has a total of 4 prime factors.
6 , 4 , 25 , 33 , 691 , 144 , 5341 , 480 , 3404 , 38730 , 332138 , 968047 , 4547148 , 47674 , 76231510 , 84464411 , 574950675 , 960344004 , 5275742813 , 8652085169
n×2
41374010
n×3
62061015
n×4
82748020
n×5
103435025
n÷2
10343502.5
n÷3
6895668.3333333
n÷3
5171751.25
n÷5
4137401
n2
427952175870025
n3
8.8530488019841E+21
n4
1.8314306483189E+29
n5
3.7886814978926E+36
2 √n
4548.2969340183
3 √n
274.51486919608
4 √n
67.441062669699
5 √n
29.049557669669
1 , 5 , 23 , 29 , 115 , 145 , 667 , 3335 , 6203 , 31015 , 142669 , 179887 , 713345 , 899435 , 4137401 , 20687005
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
-20687004
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 20687005 can be divided by 16 positive divisors.
The sum of these divisors (counting 20687005) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010100010011101
3
Ternary
1102221000020101
4
Quaternary
1032322202131
5
Quinary
20243441010
6
Senary
2015221101
8
Octal
116724235
10
Decimal
20687005
12
Duodecimal
6b17791
16
Hexadecimal
13ba89d
20
Vigesimal
695ha5
36
Base36
cbe71
md5
3bdddb43c7e31029810b13476cf7578a
sha1
b5eb7ba6516b36d3ed38ced7765943e9a63e12be
sha256
dff55b529014aa5113b83a23f505e7e22296c6d9d4acda778d4f9c7fe2c7d9d7
sha512
6b2a5163dd1e25e67452a3c2a3491e7563b2ddad1a48759662ae54e1649e53819253b6896ad4738b35f8c7238a283449c7d13617ff24e9b71beeb0a043cd03e4
ripemd-160
135a9ee3ad17a8268c71ba9c91cae387a56b6af7
Diameter
41374010
Circumference
129980285.86555
Area
1.344451411801E+15
Volume
3.7083564104247E+22
Surface area
5.3778056472042E+15
Circumference
129980285.86555
Perimeter
82748020
Area
427952175870025
Diagonal
29255843.03588
Surface area
2567713055220150
Volume
8.8530488019841E+21
Space diagonal
35830943.716431
Perimeter
62061015
Area
1.8530872795413E+14
Altitude
17915471.858216
Surface area
1.8530872795413E+14
Volume
1.0433418070097E+21
Height
9751947.6786267