21082487 is an odd 8-digits composite number following 21082486
and preceding 21082488 . In scientific notation, it is written as 2.1082487 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20462400 positive integers (up to 21082487) that are relatively prime to 21082487.
21082487 has 8 divisors, whose sum is 21707952
The reverse of 21082487 is 78428012
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-two thousand four hundred eighty-seven
Scientific notation
2.1082487 × 10^7
Engineering notation
2.1082487 × 10^6
Prime Factorization
41 × 211 × 2437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082487
Product of the distinct prime numbers
The prime factorization of 21082487 is 41 × 211 × 2437.
Since it has a total of 3 prime factors.
1 , 1 , 75 , 95 , 458 , 452 , 501 , 4811 , 67212 , 78035 , 155008 , 381251 , 3374813 , 8055912 , 26872115 , 32276746 , 813936625 , 46521494 , 7680969159 , 9175331706
n×2
42164974
n×3
63247461
n×4
84329948
n×5
105412435
n÷2
10541243.5
n÷3
7027495.6666667
n÷3
5270621.75
n÷5
4216497.4
n2
444471258105169
n3
9.3705595208759E+21
n4
1.9755469928159E+29
n5
4.1649443793931E+36
2 √n
4591.5669438657
3 √n
276.25317646136
4 √n
67.761101997132
5 √n
29.159788404746
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21082486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21082487 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082487) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011000101110111
3
Ternary
1110200002201212
4
Quaternary
1100123011313
5
Quinary
20344114422
6
Senary
2031512035
8
Octal
120330567
10
Decimal
21082487
12
Duodecimal
708861b
16
Hexadecimal
141b177
20
Vigesimal
6bf647
36
Base36
cjvcn
md5
afa5ef1a4981ac034f429d8f86d13ee9
sha1
926ee004047aef7e376ce5f5ccc6c02d55f102eb
sha256
d5a8ea0ba2a11f915eb98e5c03c113c812180bc6195a8c56e55a161e5748e46a
sha512
06085091f1d0d02c6c617de0796188a835318e2919f2b9abdcf60b3fa9f866327567bece3971af0800934c1425baca9f082d4b31bcb90096253fb53f1515c8aa
ripemd-160
301075d67eaa68a603f946e781109b74735378e6
Diameter
42164974
Circumference
132465172.5572
Area
1.396347639195E+15
Volume
3.9251307934413E+22
Surface area
5.58539055678E+15
Circumference
132465172.5572
Perimeter
84329948
Area
444471258105169
Diagonal
29815139.043954
Surface area
2666827548631014
Volume
9.3705595208759E+21
Space diagonal
36515938.63391
Perimeter
63247461
Area
1.9246170038555E+14
Altitude
18257969.316955
Surface area
1.9246170038555E+14
Volume
1.1043310301206E+21
Height
9938379.6813182