21491484 is an even 8-digits composite number following 21491483
and preceding 21491485 . In scientific notation, it is written as 2.1491484 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors.
There are 6140400 positive integers (up to 21491484) that are relatively prime to 21491484.
21491484 has 12 divisors, whose sum is 39401208
The reverse of 21491484 is 48419412
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-one thousand four hundred eighty-four
Scientific notation
2.1491484 × 10^7
Engineering notation
2.1491484 × 10^6
Prime Factorization
2 × 2 × 21 × 255851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10745742
Product of the distinct prime numbers
The prime factorization of 21491484 is 2 × 2 × 21 × 255851.
Since it has a total of 4 prime factors.
7 , 10 , 15 , 27 , 288 , 414 , 5523 , 9043 , 63570 , 92313 , 672469 , 979050 , 1589580 , 5683099 , 15860123 , 8219159 , 466052020 , 412396715 , 2216937445 , 8798040131
n×2
42982968
n×3
64474452
n×4
85965936
n×5
107457420
n÷2
10745742
n÷3
7163828
n÷3
5372871
n÷5
4298296.8
n2
461883884522256
n3
9.9265701140679E+21
n4
2.1333672278137E+29
n5
4.5849227642682E+36
2 √n
4635.8908528998
3 √n
278.02817029029
4 √n
68.087376604623
5 √n
29.27205961556
1 , 2 , 4 , 21 , 42 , 84 , 255851 , 511702 , 1023404 , 5372871 , 10745742 , 21491484
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491483
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491484 can be divided by 12 positive divisors.
The sum of these divisors (counting 21491484) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001111110111100011100
3
Ternary
1111102212202220
4
Quaternary
1101332330130
5
Quinary
21000211414
6
Senary
2044345340
8
Octal
121767434
10
Decimal
21491484
12
Duodecimal
7245250
16
Hexadecimal
147ef1c
20
Vigesimal
6e68e4
36
Base36
csmxo
md5
b7503c5956233f6f0d0caa40c2c364fb
sha1
c4c4cdf15487eef35f560fa090a5a5ddca6e9449
sha256
7e54c59bd1991aac7e5d2a2dfd93cabc14dd03206627d448d668f6700ec2aa6d
sha512
71217bf040242b4500f0db0fbd3b3134c70a0b9caf9535def05448716a692ed711a92d6ea91ed6a89b0e7a82624a66beeb9a8a6435f3adfc77e81596aeeab4b8
ripemd-160
0f188f16d059a9223697bf85348b56e7a0fb8599
Diameter
42982968
Circumference
135034976.49829
Area
1.4510510184266E+15
Volume
4.1580319660933E+22
Surface area
5.8042040737065E+15
Circumference
135034976.49829
Perimeter
85965936
Area
461883884522256
Diagonal
30393548.148324
Surface area
2771303307133536
Volume
9.9265701140679E+21
Space diagonal
37224342.218054
Perimeter
64474452
Area
2.0000158879746E+14
Altitude
18612171.109027
Surface area
2.0000158879746E+14
Volume
1.1698575069302E+21
Height
10131182.716108