21143986 is an even 8-digits composite number following 21143985
and preceding 21143987 . In scientific notation, it is written as 2.1143986 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 10571992 positive integers (up to 21143986) that are relatively prime to 21143986.
21143986 has 4 divisors, whose sum is 31715982
The reverse of 21143986 is 68934112
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million one hundred forty-three thousand nine hundred eighty-six
Scientific notation
2.1143986 × 10^7
Engineering notation
2.1143986 × 10^6
Prime Factorization
2 × 10571993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21143986
Product of the distinct prime numbers
The prime factorization of 21143986 is 2 × 10571993.
Since it has a total of 2 prime factors.
3 , 2 , 83 , 54 , 785 , 233 , 7111 , 3380 , 55661 , 59665 , 250242 , 40400 , 5345907 , 859644 , 46850826 , 15387850 , 785394097 , 477233373 , 8089544357 , 3180596774
n×2
42287972
n×3
63431958
n×4
84575944
n×5
105719930
n÷2
10571993
n÷3
7047995.3333333
n÷3
5285996.5
n÷5
4228797.2
n2
447068143968196
n3
9.4528025771095E+21
n4
1.9986992535117E+29
n5
4.2260469034461E+36
2 √n
4598.2590183677
3 √n
276.52153191661
4 √n
67.810463929748
5 √n
29.17678079293
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21143985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21143986 can be divided by 4 positive divisors.
The sum of these divisors (counting 21143986) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101010000110110010
3
Ternary
1110210020002121
4
Quaternary
1100222012302
5
Quinary
20403101421
6
Senary
2033104454
8
Octal
120520662
10
Decimal
21143986
12
Duodecimal
70b812a
16
Hexadecimal
142a1b2
20
Vigesimal
6c2jj6
36
Base36
cl6sy
md5
a315217c69434c4a093a6f8580884c04
sha1
c9c2c07621e70736fd4125382b724e1681cca47d
sha256
cb94c7d6a47b44f3efdb15ec58a7360d95a808dbdd638603c70d313c3d859ccb
sha512
1bc62f99fb649d1a1485aacd155a5db2b63c4665a22c7e21c7848271c97d133222c12ac7a8d34c11c24dd75b93121a3f4b18c72d571526fbd9d9ad9c6f0ac6b4
ripemd-160
db64411dd6ba0a88819ae704fd869b0ebe35fba4
Diameter
42287972
Circumference
132851582.17041
Area
1.4045059967445E+15
Volume
3.9595806842776E+22
Surface area
5.618023986978E+15
Circumference
132851582.17041
Perimeter
84575944
Area
447068143968196
Diagonal
29902111.763827
Surface area
2682408863809176
Volume
9.4528025771095E+21
Space diagonal
36622458.026525
Perimeter
63431958
Area
1.9358618494961E+14
Altitude
18311229.013263
Surface area
1.9358618494961E+14
Volume
1.1140234672486E+21
Height
9967370.5879423