21861189 is an odd 8-digits composite number following 21861188
and preceding 21861190 . In scientific notation, it is written as 2.1861189 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 12492072 positive integers (up to 21861189) that are relatively prime to 21861189.
21861189 has 12 divisors, whose sum is 36088416
The reverse of 21861189 is 98116812
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million eight hundred sixty-one thousand one hundred eighty-nine
Scientific notation
2.1861189 × 10^7
Engineering notation
2.1861189 × 10^6
Prime Factorization
3 × 3 × 7 × 347003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7287063
Product of the distinct prime numbers
The prime factorization of 21861189 is 3 × 3 × 7 × 347003.
Since it has a total of 4 prime factors.
9 , 6 , 71 , 39 , 967 , 33 , 8055 , 3645 , 97284 , 50755 , 622325 , 714698 , 376826 , 9055941 , 65568215 , 37740175 , 207570062 , 759282357 , 7988562640 , 6681828830
n×2
43722378
n×3
65583567
n×4
87444756
n×5
109305945
n÷2
10930594.5
n÷3
7287063
n÷3
5465297.25
n÷5
4372237.8
n2
477911584493721
n3
1.0447715473907E+22
n4
2.283994825933E+29
n5
4.9930842564743E+36
2 √n
4675.5950423449
3 √n
279.61336517494
4 √n
68.378322898013
5 √n
29.372083609687
1 , 3 , 7 , 9 , 21 , 63 , 347003 , 1041009 , 2429021 , 3123027 , 7287063 , 21861189
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21861188
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21861189 can be divided by 12 positive divisors.
The sum of these divisors (counting 21861189) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011011001001101000101
3
Ternary
1112010122220200
4
Quaternary
1103121031011
5
Quinary
21044024224
6
Senary
2100321113
8
Octal
123311505
10
Decimal
21861189
12
Duodecimal
73a3199
16
Hexadecimal
14d9345
20
Vigesimal
6gccj9
36
Base36
d0k79
md5
10c044c1da6c53270742ba45acc0adaf
sha1
31330f473927c8bb886b303514b03d6b8d89268c
sha256
8b971f5db864d145286821a97c26dac87def16db2c9d510f3fae2c674a4a62d2
sha512
36f53920df837b49c895841eb27058842954f9f7746fba69a8be20e28cdc66c05031ad22576a88bee6cce55f0191288fa29bc358a5110adb7af25538be3178bc
ripemd-160
d454e62953f86a4c1b192a351f0892688e3817a4
Diameter
43722378
Circumference
137357901.52228
Area
1.5014035229109E+15
Volume
4.3763288239496E+22
Surface area
6.0056140916437E+15
Circumference
137357901.52228
Perimeter
87444756
Area
477911584493721
Diagonal
30916389.973402
Surface area
2867469506962326
Volume
1.0447715473907E+22
Space diagonal
37864690.061866
Perimeter
65583567
Area
2.0694178646722E+14
Altitude
18932345.030933
Surface area
2.0694178646722E+14
Volume
1.2312750765845E+21
Height
10305463.324467