21032487 is an odd 8-digits composite number following 21032486
and preceding 21032488 . In scientific notation, it is written as 2.1032487 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 11384064 positive integers (up to 21032487) that are relatively prime to 21032487.
21032487 has 16 divisors, whose sum is 26243840
The reverse of 21032487 is 78423012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million thirty-two thousand four hundred eighty-seven
Scientific notation
2.1032487 × 10^7
Engineering notation
2.1032487 × 10^6
Prime Factorization
27 × 7 × 19 × 5857
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21032487
Product of the distinct prime numbers
The prime factorization of 21032487 is 27 × 7 × 19 × 5857.
Since it has a total of 4 prime factors.
5 , 7 , 39 , 8 , 796 , 717 , 5530 , 5471 , 57095 , 18233 , 99082 , 469845 , 9449003 , 4714861 , 95503895 , 12301248 , 953429268 , 380639754 , 1182174033 , 8886807696
n×2
42064974
n×3
63097461
n×4
84129948
n×5
105162435
n÷2
10516243.5
n÷3
7010829
n÷3
5258121.75
n÷5
4206497.4
n2
442365509405169
n3
9.3040468258126E+21
n4
1.9568724391129E+29
n5
4.1157894136301E+36
2 √n
4586.1189474326
3 √n
276.03461286133
4 √n
67.720890037215
5 √n
29.145943980033
1 , 7 , 19 , 27 , 133 , 189 , 513 , 3591 , 5857 , 40999 , 111283 , 158139 , 778981 , 1106973 , 3004641 , 21032487
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21032486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21032487 can be divided by 16 positive divisors.
The sum of these divisors (counting 21032487) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110111000100111
3
Ternary
1110120120011000
4
Quaternary
1100032320213
5
Quinary
20341014422
6
Senary
2030444343
8
Octal
120167047
10
Decimal
21032487
12
Duodecimal
70636b3
16
Hexadecimal
140ee27
20
Vigesimal
6b9147
36
Base36
cisrr
md5
a08f936d6bee5d93f3c398a8edfa717e
sha1
037f6acbab45899e824fc03d1e1dbc2fd75d2630
sha256
098048f8d5e0f4d40f64d55f7373d119a9f913a50882e07ab62931270dc5d5af
sha512
1a052765de8dc4d3b165d982a9753a53c5e624cb7acab9cead6b2a83f9c9454f789917043c6ff4aa59236b07e9d867c94df083beadf67e572483304688d8cf55
ripemd-160
e0d7c29925526510aa127403845aa3102b68f85c
Diameter
42064974
Circumference
132151013.29185
Area
1.3897322345488E+15
Volume
3.8972700208838E+22
Surface area
5.5589289381951E+15
Circumference
132151013.29185
Perimeter
84129948
Area
442365509405169
Diagonal
29744428.365836
Surface area
2654193056431014
Volume
9.3040468258126E+21
Space diagonal
36429336.093532
Perimeter
63097461
Area
1.9154988445146E+14
Altitude
18214668.046766
Surface area
1.9154988445146E+14
Volume
1.0964924338349E+21
Height
9914809.4552786