21491852 is an even 8-digits composite number following 21491851
and preceding 21491853 . In scientific notation, it is written as 2.1491852 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 10745924 positive integers (up to 21491852) that are relatively prime to 21491852.
21491852 has 6 divisors, whose sum is 37610748
The reverse of 21491852 is 25819412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-one thousand eight hundred fifty-two
Scientific notation
2.1491852 × 10^7
Engineering notation
2.1491852 × 10^6
Prime Factorization
2 × 2 × 5372963
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10745926
Product of the distinct prime numbers
The prime factorization of 21491852 is 2 × 2 × 5372963.
Since it has a total of 3 prime factors.
9 , 4 , 10 , 48 , 776 , 258 , 3498 , 6790 , 87670 , 86860 , 587341 , 598312 , 1659544 , 9539946 , 40276678 , 63786639 , 492124863 , 421328847 , 1909446891 , 8370055931
n×2
42983704
n×3
64475556
n×4
85967408
n×5
107459260
n÷2
10745926
n÷3
7163950.6666667
n÷3
5372963
n÷5
4298370.4
n2
461899702389904
n3
9.9270800426079E+21
n4
2.1335133506788E+29
n5
4.5853153172813E+36
2 √n
4635.9305430517
3 √n
278.02975717904
4 √n
68.087668068834
5 √n
29.272159860328
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491851
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491852 can be divided by 6 positive divisors.
The sum of these divisors (counting 21491852) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001111111000010001100
3
Ternary
1111102220021112
4
Quaternary
1101333002030
5
Quinary
21000214402
6
Senary
2044351152
8
Octal
121770214
10
Decimal
21491852
12
Duodecimal
72454b8
16
Hexadecimal
147f08c
20
Vigesimal
6e69cc
36
Base36
csn7w
md5
2039b6e1d690aced8152452073b8103d
sha1
cf0ddd20afd4904cfc180cfb22798002560b68fd
sha256
6e6ab6b491902af80a40f9da7128482fb1ca548ff56e5c5d92784fe38969e9b5
sha512
c886925b5479ec5cb12639627b0b76f079dead128ca93feaf1501b7a770b3f69949e1a95abad413f6a2a2c68d609fb7ed8d0caa94edd097d1fa2bdd14e5fd359
ripemd-160
f564c58e47f5c85c894cf128a06ef93738c483f3
Diameter
42983704
Circumference
135037288.71048
Area
1.4511007117234E+15
Volume
4.1582455644606E+22
Surface area
5.8044028468937E+15
Circumference
135037288.71048
Perimeter
85967408
Area
461899702389904
Diagonal
30394068.578915
Surface area
2771398214339424
Volume
9.9270800426079E+21
Space diagonal
37224979.612751
Perimeter
64475556
Area
2.0000843813506E+14
Altitude
18612489.806375
Surface area
2.0000843813506E+14
Volume
1.1699176025849E+21
Height
10131356.192972