20870138 is an even 8-digits composite number following 20870137
and preceding 20870139 . In scientific notation, it is written as 2.0870138 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10435068 positive integers (up to 20870138) that are relatively prime to 20870138.
20870138 has 4 divisors, whose sum is 31305210
The reverse of 20870138 is 83107802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred seventy thousand one hundred thirty-eight
Scientific notation
2.0870138 × 10^7
Engineering notation
2.0870138 × 10^6
Prime Factorization
2 × 10435069
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20870138
Product of the distinct prime numbers
The prime factorization of 20870138 is 2 × 10435069.
Since it has a total of 2 prime factors.
4 , 7 , 53 , 12 , 135 , 63 , 2986 , 7179 , 69387 , 26168 , 76081 , 626180 , 563390 , 6305888 , 66286899 , 28286320 , 701735955 , 548768536 , 2271604626 , 2454264928
n×2
41740276
n×3
62610414
n×4
83480552
n×5
104350690
n÷2
10435069
n÷3
6956712.6666667
n÷3
5217534.5
n÷5
4174027.6
n2
435562660139044
n3
9.0902528247489E+21
n4
1.897148309074E+29
n5
3.9593747016841E+36
2 √n
4568.3846160322
3 √n
275.32254385872
4 √n
67.589826276092
5 √n
29.100809110596
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
-20870137
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 20870138 can be divided by 4 positive divisors.
The sum of these divisors (counting 20870138) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100111001111111010
3
Ternary
1110021022110002
4
Quaternary
1033213033322
5
Quinary
20320321023
6
Senary
2023153002
8
Octal
117471772
10
Decimal
20870138
12
Duodecimal
6ba5762
16
Hexadecimal
13e73fa
20
Vigesimal
6a8f6i
36
Base36
cfbi2
md5
9fab0456eaf0d98a0b7050d3b6aff481
sha1
e73665ebbfabfee75725d04be47f34150585e435
sha256
9e9f51594d3afdeeabaf5fc004c8bf8f367fe0a545e41b5694d36f52c00042af
sha512
d01c7a38be737d4dad1889518441542056366bf4108f78893de67fabada97bb536592a076a9efdf2ae2657c152bc4705cbec31de54f7f6c28816150b56428c2e
ripemd-160
1b3384e0f5230b911b6509684b8ecd28cf4eb756
Diameter
41740276
Circumference
131130944.44041
Area
1.3683604532708E+15
Volume
3.807716199134E+22
Surface area
5.4734418130834E+15
Circumference
131130944.44041
Perimeter
83480552
Area
435562660139044
Diagonal
29514832.208198
Surface area
2613375960834264
Volume
9.0902528247489E+21
Space diagonal
36148139.376974
Perimeter
62610414
Area
1.8860416431017E+14
Altitude
18074069.688487
Surface area
1.8860416431017E+14
Volume
1.07129656918E+21
Height
9838277.4027327