21478812 is an even 8-digits composite number following 21478811
and preceding 21478813 . In scientific notation, it is written as 2.1478812 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors.
There are 7007088 positive integers (up to 21478812) that are relatively prime to 21478812.
21478812 has 24 divisors, whose sum is 51184896
The reverse of 21478812 is 21887412
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred seventy-eight thousand eight hundred twelve
Scientific notation
2.1478812 × 10^7
Engineering notation
2.1478812 × 10^6
Prime Factorization
2 × 2 × 3 × 47 × 38083
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10739406
Product of the distinct prime numbers
The prime factorization of 21478812 is 2 × 2 × 3 × 47 × 38083.
Since it has a total of 5 prime factors.
7 , 1 , 78 , 54 , 122 , 597 , 5318 , 4585 , 40618 , 72897 , 900824 , 862333 , 6355085 , 6017059 , 70948332 , 71410631 , 482457625 , 276772334 , 7796446990 , 5749692712
n×2
42957624
n×3
64436436
n×4
85915248
n×5
107394060
n÷2
10739406
n÷3
7159604
n÷3
5369703
n÷5
4295762.4
n2
461339364931344
n3
9.9090214875597E+21
n4
2.1283400963526E+29
n5
4.5714216801618E+36
2 √n
4634.5239237704
3 √n
277.97351506568
4 √n
68.077337813478
5 √n
29.268606870685
1 , 2 , 3 , 4 , 6 , 12 , 47 , 94 , 141 , 188 , 282 , 564 , 38083 , 76166 , 114249 , 152332 , 228498 , 456996 , 1789901 , 3579802 , 5369703 , 7159604 , 10739406 , 21478812
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21478811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21478812 can be divided by 24 positive divisors.
The sum of these divisors (counting 21478812) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001111011110110011100
3
Ternary
1111102020101120
4
Quaternary
1101323312130
5
Quinary
20444310222
6
Senary
2044210540
8
Octal
121736634
10
Decimal
21478812
12
Duodecimal
7239a50
16
Hexadecimal
147bd9c
20
Vigesimal
6e4h0c
36
Base36
csd5o
md5
c190fd7ca94b96903abee37e5eb37b8a
sha1
b2a2d437b738a65142f72ef6ea8667e83ab11b57
sha256
052c90b45e7d68f45fdbdf957bb285dfa443b1b2b968273d5e6b96ce0d142c2a
sha512
852576d228779e18d91fe25d43db5c6b8359192bd36801c6f7adf5fa1132f8361ab562f4e7b13ae5331458b30f552639d57e8c3feec2baccfda7befe94514f15
ripemd-160
16bcf0cdda2c12e18e59ae6ab916b54e680a6804
Diameter
42957624
Circumference
134955355.97407
Area
1.4493403596801E+15
Volume
4.1506812146108E+22
Surface area
5.7973614387204E+15
Circumference
134955355.97407
Perimeter
85915248
Area
461339364931344
Diagonal
30375627.234062
Surface area
2768036189588064
Volume
9.9090214875597E+21
Space diagonal
37202393.67022
Perimeter
64436436
Area
1.9976580489816E+14
Altitude
18601196.83511
Surface area
1.9976580489816E+14
Volume
1.1677893814628E+21
Height
10125209.078021