21241855 is an odd 8-digits composite number following 21241854
and preceding 21241856 . In scientific notation, it is written as 2.1241855 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 16993480 positive integers (up to 21241855) that are relatively prime to 21241855.
21241855 has 4 divisors, whose sum is 25490232
The reverse of 21241855 is 55814212
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred forty-one thousand eight hundred fifty-five
Scientific notation
2.1241855 × 10^7
Engineering notation
2.1241855 × 10^6
Prime Factorization
5 × 4248371
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21241855
Product of the distinct prime numbers
The prime factorization of 21241855 is 5 × 4248371.
Since it has a total of 2 prime factors.
6 , 10 , 25 , 70 , 461 , 307 , 8334 , 6697 , 8561 , 19508 , 306155 , 237380 , 5630492 , 4027049 , 14993917 , 95442386 , 229581154 , 652092108 , 7079254775 , 3138235102
n×2
42483710
n×3
63725565
n×4
84967420
n×5
106209275
n÷2
10620927.5
n÷3
7080618.3333333
n÷3
5310463.75
n÷5
4248371
n2
451216403841025
n3
9.5846734240125E+21
n4
2.0359624309523E+29
n5
4.3247618743736E+36
2 √n
4608.8886946855
3 √n
276.94751967495
4 √n
67.8887965329
5 √n
29.20374098954
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
-21241854
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 21241855 can be divided by 4 positive divisors.
The sum of these divisors (counting 21241855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000001111111111111
3
Ternary
1110222012100101
4
Quaternary
1101001333333
5
Quinary
20414214410
6
Senary
2035141531
8
Octal
121017777
10
Decimal
21241855
12
Duodecimal
71448a7
16
Hexadecimal
1441fff
20
Vigesimal
6cf4cf
36
Base36
cnabj
md5
27bdc089ec433afc06ac037fcac883c7
sha1
a312b1240ba3b727c64afb013714ec99d71c9ceb
sha256
97f5f19adb8becd4aa35cec68393e7c731a7f760399aebdc129612dcd20eac3b
sha512
8a64cb0fb4fec16d8b4d369a0be91dbe076e087d22039798700580114214529cbc0f7a2798616d0aafa9c642800104d1748400cc5b3afbbb6c8296ee3f2617fe
ripemd-160
85277b57240d1fe8e978651859bc589ae05496e0
Diameter
42483710
Circumference
133466511.23324
Area
1.4175381394862E+15
Volume
4.014818615458E+22
Surface area
5.6701525579447E+15
Circumference
133466511.23324
Perimeter
84967420
Area
451216403841025
Diagonal
30040519.430963
Surface area
2707298423046150
Volume
9.5846734240125E+21
Space diagonal
36791972.107011
Perimeter
63725565
Area
1.9538243416529E+14
Altitude
18395986.053505
Surface area
1.9538243416529E+14
Volume
1.1295645955963E+21
Height
10013506.476988