21861804 is an even 8-digits composite number following 21861803
and preceding 21861805 . In scientific notation, it is written as 2.1861804 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors.
There are 7231120 positive integers (up to 21861804) that are relatively prime to 21861804.
21861804 has 24 divisors, whose sum is 51403968
The reverse of 21861804 is 40816812
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eight hundred sixty-one thousand eight hundred four
Scientific notation
2.1861804 × 10^7
Engineering notation
2.1861804 × 10^6
Prime Factorization
2 × 2 × 3 × 131 × 13907
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10930902
Product of the distinct prime numbers
The prime factorization of 21861804 is 2 × 2 × 3 × 131 × 13907.
Since it has a total of 5 prime factors.
6 , 1 , 96 , 45 , 786 , 322 , 6144 , 8624 , 73873 , 1695 , 46143 , 316497 , 4556487 , 5684545 , 41703824 , 92181365 , 599551514 , 736555105 , 3691124470 , 7221938912
n×2
43723608
n×3
65585412
n×4
87447216
n×5
109309020
n÷2
10930902
n÷3
7287268
n÷3
5465451
n÷5
4372360.8
n2
477938474134416
n3
1.0448597245586E+22
n4
2.2842518505793E+29
n5
4.9937866244003E+36
2 √n
4675.6608089125
3 √n
279.61598718248
4 √n
68.378803798491
5 √n
29.372248867196
1 , 2 , 3 , 4 , 6 , 12 , 131 , 262 , 393 , 524 , 786 , 1572 , 13907 , 27814 , 41721 , 55628 , 83442 , 166884 , 1821817 , 3643634 , 5465451 , 7287268 , 10930902 , 21861804
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
-21861803
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 21861804 can be divided by 24 positive divisors.
The sum of these divisors (counting 21861804) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011011001010110101100
3
Ternary
1112010200202110
4
Quaternary
1103121112230
5
Quinary
21044034204
6
Senary
2100324020
8
Octal
123312654
10
Decimal
21861804
12
Duodecimal
73a3610
16
Hexadecimal
14d95ac
20
Vigesimal
6gcea4
36
Base36
d0koc
md5
cf0044df82cbe9c6a89a4ae7d5773a9d
sha1
46d91fd51ecf1f187362707a1eb4f84e4c86c369
sha256
42fe15d8ce564cd955694c64f97dbf4b6e02a91056d0d95d96957d2f294f669f
sha512
02563d9459633c0d7670fe52339226edb1ccc4028bbb5799e9fa9a9e3cc6e3efaa31050c7f9bf765c59ee3c45f5f8c39fccbe2e22f47d30826bffe472065db5c
ripemd-160
63ec9471b51c99bf94b0361de64655af7186be09
Diameter
43723608
Circumference
137361765.68124
Area
1.5014879992086E+15
Volume
4.3766981796067E+22
Surface area
6.0059519968344E+15
Circumference
137361765.68124
Perimeter
87447216
Area
477938474134416
Diagonal
30917259.714742
Surface area
2867630844806496
Volume
1.0448597245586E+22
Space diagonal
37865755.273113
Perimeter
65585412
Area
2.0695343002319E+14
Altitude
18932877.636556
Surface area
2.0695343002319E+14
Volume
1.2313789943735E+21
Height
10305753.238247