21082008 is an even 8-digits composite number following 21082007
and preceding 21082009 . In scientific notation, it is written as 2.1082008 × 10^7.
The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors.
There are 6837120 positive integers (up to 21082008) that are relatively prime to 21082008.
21082008 has 32 divisors, whose sum is 54131760
The reverse of 21082008 is 80028012
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eighty-two thousand eight
Scientific notation
2.1082008 × 10^7
Engineering notation
2.1082008 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 37 × 23741
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5270502
Product of the distinct prime numbers
The prime factorization of 21082008 is 2 × 2 × 2 × 3 × 37 × 23741.
Since it has a total of 6 prime factors.
9 , 4 , 82 , 100 , 164 , 560 , 1761 , 6695 , 9720 , 16188 , 263897 , 851535 , 8756177 , 3148832 , 6517700 , 50529596 , 499736694 , 80683650 , 5276346595 , 6014656374
n×2
42164016
n×3
63246024
n×4
84328032
n×5
105410040
n÷2
10541004
n÷3
7027336
n÷3
5270502
n÷5
4216401.6
n2
444451061312064
n3
9.3699208301894E+21
n4
1.9753674590142E+29
n5
4.1644712573877E+36
2 √n
4591.5147827269
3 √n
276.25108426238
4 √n
67.760717106056
5 √n
29.159655899833
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 37 , 74 , 111 , 148 , 222 , 296 , 444 , 888 , 23741 , 47482 , 71223 , 94964 , 142446 , 189928 , 284892 , 569784 , 878417 , 1756834 , 2635251 , 3513668 , 5270502 , 7027336 , 10541004 , 21082008
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21082007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21082008 can be divided by 32 positive divisors.
The sum of these divisors (counting 21082008) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011010111110011000
3
Ternary
1110200002002010
4
Quaternary
1100122332120
5
Quinary
20344111013
6
Senary
2031505520
8
Octal
120327630
10
Decimal
21082008
12
Duodecimal
70882a0
16
Hexadecimal
141af98
20
Vigesimal
6bf508
36
Base36
cjuzc
md5
358fd9f286311b06df2cc727d1c9b124
sha1
47efdb1253d43c3bd301f5f56ab5114240b4ac3c
sha256
f452f2dbfe129d4606971ea419746d3ab7a794f6a4c19833b51cbe9ee4c9476a
sha512
b45db535906f5c2cb6a31bbbc54193902a95c07a74bad44b2b2d48a94e0ea178efafea49183fcc1143e4b2edc6594b377e8805905b19aa631601e1015cf2ad0b
ripemd-160
626f977bc4ba661b8c87ed8f77b5039385c0990f
Diameter
42164016
Circumference
132462162.91144
Area
1.3962841890982E+15
Volume
3.9248632593121E+22
Surface area
5.5851367563927E+15
Circumference
132462162.91144
Perimeter
84328032
Area
444451061312064
Diagonal
29814461.635658
Surface area
2666706367872384
Volume
9.3699208301894E+21
Space diagonal
36515108.981574
Perimeter
63246024
Area
1.924529549176E+14
Altitude
18257554.490787
Surface area
1.924529549176E+14
Volume
1.1042557597013E+21
Height
9938153.8785527