21491753 is an odd 8-digits composite number following 21491752
and preceding 21491754 . In scientific notation, it is written as 2.1491753 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21127428 positive integers (up to 21491753) that are relatively prime to 21491753.
21491753 has 4 divisors, whose sum is 21856080
The reverse of 21491753 is 35719412
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-one thousand seven hundred fifty-three
Scientific notation
2.1491753 × 10^7
Engineering notation
2.1491753 × 10^6
Prime Factorization
59 × 364267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491753
Product of the distinct prime numbers
The prime factorization of 21491753 is 59 × 364267.
Since it has a total of 2 prime factors.
1 , 6 , 21 , 79 , 40 , 612 , 6915 , 8582 , 57331 , 71167 , 552145 , 752938 , 8009594 , 4593684 , 27526304 , 99284962 , 491286802 , 221858009 , 682993644 , 4841233428
n×2
42983506
n×3
64475259
n×4
85967012
n×5
107458765
n÷2
10745876.5
n÷3
7163917.6666667
n÷3
5372938.25
n÷5
4298350.6
n2
461895447013009
n3
9.9269428590282E+21
n4
2.1334740397135E+29
n5
4.5852097093434E+36
2 √n
4635.9198655714
3 √n
278.02933027325
4 √n
68.087589658993
5 √n
29.272132892441
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
-21491752
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 21491753 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491753) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111000000101001
3
Ternary
1111102220010212
4
Quaternary
1101333000221
5
Quinary
21000214003
6
Senary
2044350505
8
Octal
121770051
10
Decimal
21491753
12
Duodecimal
7245435
16
Hexadecimal
147f029
20
Vigesimal
6e697d
36
Base36
csn55
md5
b88c8447119f58a48233b447c562262a
sha1
ad5051a8b52de1e2a030e1d8ef84557b775fbf5e
sha256
b1fa78c168e6bb9ffd86e1a42d1f390998a68fbc464f5158337ba21c79948a72
sha512
d0b177098dbf3c0c03158dbaa1028115317061979e222acbaeeb34eee1cc3b8a577a81ae51be07ce4af7f4764ce5b2e2dc803c5ee1ef7cae7e27c8e0d014a63b
ripemd-160
772fb0622e0a480a170e53ab2d3a5052fc5ba818
Diameter
42983506
Circumference
135036666.67513
Area
1.4510873430626E+15
Volume
4.1581881011371E+22
Surface area
5.8043493722506E+15
Circumference
135036666.67513
Perimeter
85967012
Area
461895447013009
Diagonal
30393928.571773
Surface area
2771372682078054
Volume
9.9269428590282E+21
Space diagonal
37224808.139721
Perimeter
64475259
Area
2.0000659550282E+14
Altitude
18612404.06986
Surface area
2.0000659550282E+14
Volume
1.169901435345E+21
Height
10131309.523924