20115421 is an odd 8-digits composite number following 20115420
and preceding 20115422 . In scientific notation, it is written as 2.0115421 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 19785600 positive integers (up to 20115421) that are relatively prime to 20115421.
20115421 has 4 divisors, whose sum is 20445244
The reverse of 20115421 is 12451102
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred fifteen thousand four hundred twenty-one
Scientific notation
2.0115421 × 10^7
Engineering notation
2.0115421 × 10^6
Prime Factorization
61 × 329761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20115421
Product of the distinct prime numbers
The prime factorization of 20115421 is 61 × 329761.
Since it has a total of 2 prime factors.
10 , 7 , 45 , 44 , 879 , 280 , 960 , 2027 , 37496 , 53004 , 393233 , 711 , 3592405 , 4238156 , 37610255 , 48940426 , 331819254 , 569187373 , 5796752911 , 2259119359
n×2
40230842
n×3
60346263
n×4
80461684
n×5
100577105
n÷2
10057710.5
n÷3
6705140.3333333
n÷3
5028855.25
n÷5
4023084.2
n2
404630162007241
n3
8.1393060580739E+21
n4
1.6372556800601E+29
n5
3.2934087289049E+36
2 √n
4485.0218505599
3 √n
271.96292837468
4 √n
66.970305737393
5 √n
28.887225077809
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
-20115420
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 20115421 can be divided by 4 positive divisors.
The sum of these divisors (counting 20115421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101110111111011101
3
Ternary
1101211222011121
4
Quaternary
1030232333131
5
Quinary
20122143141
6
Senary
1555050541
8
Octal
114567735
10
Decimal
20115421
12
Duodecimal
68a0a51
16
Hexadecimal
132efdd
20
Vigesimal
65e8b1
36
Base36
bz55p
md5
c75a7858400878bc19e620f1fa4c1c2a
sha1
ec56f66d05cc539f3c1ef35b13144e0fa55bd009
sha256
9a651838f03cb11afe3df4fbba204f9afee1f493513b39b997b36e545eadaabc
sha512
d13bee24adf23b756beddb8a16f39be3de285762ab7c3dfa4e7977e06388d42b7bb696c0ab644413c43bd0cdc4aea8a4769bc269f92c70e3a361c4975a1ba2e8
ripemd-160
91b1fd6c685d4511e62e6221242982137285aaf7
Diameter
40230842
Circumference
126388917.67493
Area
1.2711831443828E+15
Volume
3.4093845489818E+22
Surface area
5.0847325775312E+15
Circumference
126388917.67493
Perimeter
80461684
Area
404630162007241
Diagonal
28447501.191045
Surface area
2427780972043446
Volume
8.1393060580739E+21
Space diagonal
34840931.187638
Perimeter
60346263
Area
1.7520999971784E+14
Altitude
17420465.593819
Surface area
1.7520999971784E+14
Volume
9.5922641796946E+20
Height
9482500.3970149