21291241 is an odd 8-digits composite number following 21291240
and preceding 21291242 . In scientific notation, it is written as 2.1291241 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 21155472 positive integers (up to 21291241) that are relatively prime to 21291241.
21291241 has 4 divisors, whose sum is 21427012
The reverse of 21291241 is 14219212
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million two hundred ninety-one thousand two hundred forty-one
Scientific notation
2.1291241 × 10^7
Engineering notation
2.1291241 × 10^6
Prime Factorization
157 × 135613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21291241
Product of the distinct prime numbers
The prime factorization of 21291241 is 157 × 135613.
Since it has a total of 2 prime factors.
6 , 2 , 53 , 85 , 708 , 603 , 742 , 9840 , 76648 , 3347 , 336693 , 957290 , 5556365 , 9846168 , 21947058 , 58049504 , 358350525 , 109796155 , 9007087703 , 1323671669
n×2
42582482
n×3
63873723
n×4
85164964
n×5
106456205
n÷2
10645620.5
n÷3
7097080.3333333
n÷3
5322810.25
n÷5
4258248.2
n2
453316943320081
n3
9.6516802896112E+21
n4
2.0549625110106E+29
n5
4.3752702067892E+36
2 √n
4614.2432749043
3 √n
277.16198217877
4 √n
67.928221490809
5 √n
29.217307757208
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
-21291240
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 21291241 can be divided by 4 positive divisors.
The sum of these divisors (counting 21291241) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001110000011101001
3
Ternary
1111001201002111
4
Quaternary
1101032003221
5
Quinary
20422304431
6
Senary
2040202321
8
Octal
121160351
10
Decimal
21291241
12
Duodecimal
71693a1
16
Hexadecimal
144e0e9
20
Vigesimal
6d1821
36
Base36
cocfd
md5
2703b2e27188d5927ae1d9b3bc9224e4
sha1
4fbc1c7fdf1c8f1e036a555fabda2f07cf0d3959
sha256
635d34aa7143e50fdc85b9963a875dcf4f68cffaa20230cd0a09f5e6a9299255
sha512
7651f7a1674fc0cdc8844e073567f26e55fc08a911d7f271617dc15a608a74302049e472d04d7c001651a72dec37af3aeaf22af39ac15cc3db552cc7b5e1a248
ripemd-160
c1b96af2e33bc9333ea65f78c58e6da83eb7f813
Diameter
42582482
Circumference
133776812.62282
Area
1.4241371788821E+15
Volume
4.0428863856853E+22
Surface area
5.6965487155286E+15
Circumference
133776812.62282
Perimeter
85164964
Area
453316943320081
Diagonal
30110361.781954
Surface area
2719901659920486
Volume
9.6516802896112E+21
Space diagonal
36877511.168194
Perimeter
63873723
Area
1.9629199444055E+14
Altitude
18438755.584097
Surface area
1.9629199444055E+14
Volume
1.1374614304381E+21
Height
10036787.260651