21241915 is an odd 8-digits composite number following 21241914
and preceding 21241916 . In scientific notation, it is written as 2.1241915 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16778112 positive integers (up to 21241915) that are relatively prime to 21241915.
21241915 has 8 divisors, whose sum is 25813440
The reverse of 21241915 is 51914212
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million two hundred forty-one thousand nine hundred fifteen
Scientific notation
2.1241915 × 10^7
Engineering notation
2.1241915 × 10^6
Prime Factorization
79 × 5 × 53777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21241915
Product of the distinct prime numbers
The prime factorization of 21241915 is 79 × 5 × 53777.
Since it has a total of 3 prime factors.
8 , 9 , 9 , 87 , 350 , 13 , 3384 , 8535 , 58174 , 39984 , 821100 , 616076 , 1319432 , 8743113 , 27937241 , 45323768 , 788298907 , 724217823 , 3070793101 , 8373862893
n×2
42483830
n×3
63725745
n×4
84967660
n×5
106209575
n÷2
10620957.5
n÷3
7080638.3333333
n÷3
5310478.75
n÷5
4248383
n2
451218952867225
n3
9.5847546431946E+21
n4
2.035985434266E+29
n5
4.3248229535915E+36
2 √n
4608.8952038422
3 √n
276.94778043114
4 √n
67.888844472728
5 √n
29.203757487369
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21241914
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21241915 can be divided by 8 positive divisors.
The sum of these divisors (counting 21241915) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010000000111011
3
Ternary
1110222012102121
4
Quaternary
1101002000323
5
Quinary
20414220130
6
Senary
2035142111
8
Octal
121020073
10
Decimal
21241915
12
Duodecimal
7144937
16
Hexadecimal
144203b
20
Vigesimal
6cf4ff
36
Base36
cnad7
md5
5b1dacba428a8082354183d5bc7e651c
sha1
e154656b8ea67fd8b4001cfa463a20ac428730ab
sha256
d4c5f629c44cf911d9c09b08307296fded89eec47eef24013ac770fad0f8c11b
sha512
b93ba388f6ff319cfb60997207f0df91c196984f7c082688b8b9e39f794631924800fbf1384291fa96cad076b2578c40d81faa07ce3fcad89263321fb5ed3023
ripemd-160
29955941456178b576644da2799777616e90c5d5
Diameter
42483830
Circumference
133466888.22436
Area
1.4175461474882E+15
Volume
4.0148526364694E+22
Surface area
5.6701845899526E+15
Circumference
133466888.22436
Perimeter
84967660
Area
451218952867225
Diagonal
30040604.283776
Surface area
2707313717203350
Volume
9.5847546431946E+21
Space diagonal
36792076.030059
Perimeter
63725745
Area
1.9538353792602E+14
Altitude
18396038.01503
Surface area
1.9538353792602E+14
Volume
1.1295741673687E+21
Height
10013534.761259