21082451 is an odd 8-digits composite number following 21082450
and preceding 21082452 . In scientific notation, it is written as 2.1082451 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19460712 positive integers (up to 21082451) that are relatively prime to 21082451.
21082451 has 4 divisors, whose sum is 22704192
The reverse of 21082451 is 15428012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million eighty-two thousand four hundred fifty-one
Scientific notation
2.1082451 × 10^7
Engineering notation
2.1082451 × 10^6
Prime Factorization
13 × 1621727
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21082451
Product of the distinct prime numbers
The prime factorization of 21082451 is 13 × 1621727.
Since it has a total of 2 prime factors.
6 , 7 , 91 , 52 , 483 , 997 , 3581 , 2339 , 21843 , 31169 , 247646 , 370494 , 633389 , 4687839 , 49261074 , 30616245 , 126799384 , 959855200 , 5754170588 , 5342757367
n×2
42164902
n×3
63247353
n×4
84329804
n×5
105412255
n÷2
10541225.5
n÷3
7027483.6666667
n÷3
5270612.75
n÷5
4216490.2
n2
444469740167401
n3
9.370511518062E+21
n4
1.9755334992448E+29
n5
4.1649088196686E+36
2 √n
4591.5630236337
3 √n
276.25301921995
4 √n
67.761073070264
5 √n
29.159778446214
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
-21082450
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 21082451 can be divided by 4 positive divisors.
The sum of these divisors (counting 21082451) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011000101010011
3
Ternary
1110200002200112
4
Quaternary
1100123011103
5
Quinary
20344114301
6
Senary
2031511535
8
Octal
120330523
10
Decimal
21082451
12
Duodecimal
70885ab
16
Hexadecimal
141b153
20
Vigesimal
6bf62b
36
Base36
cjvbn
md5
defaf2ee8bee764ce624860b477c936f
sha1
e8a241caa4ca7a1ba95987b5194fef8d04969ff0
sha256
15635b8c6a1971d691fefbd6178b9bee026a11cf905348c5d0e5e467cc8faef9
sha512
5d58118e59f4b43e5e19869ac0c638faf3e98e6bee32922a65755051781e0b9949213723f9ce0cd3a712fbb521d984b6926e7a010a9b9dbcb4f8f6916532313c
ripemd-160
9315e673ebcf4a693ad478c40edb7c513ce53293
Diameter
42164902
Circumference
132464946.36253
Area
1.3963428704529E+15
Volume
3.9251106860696E+22
Surface area
5.5853714818115E+15
Circumference
132464946.36253
Perimeter
84329804
Area
444469740167401
Diagonal
29815088.132266
Surface area
2666818441004406
Volume
9.370511518062E+21
Space diagonal
36515876.280081
Perimeter
63247353
Area
1.9246104309922E+14
Altitude
18257938.140041
Surface area
1.9246104309922E+14
Volume
1.1043253729347E+21
Height
9938362.7107554