21083387 is an odd 8-digits composite number following 21083386
and preceding 21083388 . In scientific notation, it is written as 2.1083387 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 18413472 positive integers (up to 21083387) that are relatively prime to 21083387.
21083387 has 16 divisors, whose sum is 23950080
The reverse of 21083387 is 78338012
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-three thousand three hundred eighty-seven
Scientific notation
2.1083387 × 10^7
Engineering notation
2.1083387 × 10^6
Prime Factorization
13 × 23 × 107 × 659
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21083387
Product of the distinct prime numbers
The prime factorization of 21083387 is 13 × 23 × 107 × 659.
Since it has a total of 4 prime factors.
2 , 2 , 98 , 53 , 460 , 420 , 3814 , 7964 , 43985 , 53875 , 820097 , 918950 , 5151858 , 2971725 , 63181295 , 15982465 , 961348657 , 737823532 , 9285543026 , 9350915107
n×2
42166774
n×3
63250161
n×4
84333548
n×5
105416935
n÷2
10541693.5
n÷3
7027795.6666667
n÷3
5270846.75
n÷5
4216677.4
n2
444509207391769
n3
9.3717596445039E+21
n4
1.9758843545606E+29
n5
4.1658334514446E+36
2 √n
4591.664948578
3 √n
276.25710743847
4 √n
67.76182515678
5 √n
29.160037363623
1 , 13 , 23 , 107 , 299 , 659 , 1391 , 2461 , 8567 , 15157 , 31993 , 70513 , 197041 , 916669 , 1621799 , 21083387
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
-21083386
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 21083387 can be divided by 16 positive divisors.
The sum of these divisors (counting 21083387) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011010011111011
3
Ternary
1110200010222012
4
Quaternary
1100123103323
5
Quinary
20344132022
6
Senary
2031520135
8
Octal
120332373
10
Decimal
21083387
12
Duodecimal
708904b
16
Hexadecimal
141b4fb
20
Vigesimal
6bf897
36
Base36
cjw1n
md5
8044de3ebdf1acf99abebd3859070f35
sha1
cb633e4f99b29c29397c116d6e667579d1cc1904
sha256
302b14165477a08893657a5c06ddd60dff04d520788a9eaaf89d45fafc8ec37a
sha512
4ec5b1b18a546471a47a298dde2ba3d16ca6f8ca11174bc9adf5337833525914b792bfbeca2329f96e636356584d4e7f97ca3ca3bc0972f6109ddd192173c831
ripemd-160
7d8ea059e56ab5e771052d8a720a5d118f2d8e47
Diameter
42166774
Circumference
132470827.42398
Area
1.396466860395E+15
Volume
3.925633500051E+22
Surface area
5.58586744158E+15
Circumference
132470827.42398
Perimeter
84333548
Area
444509207391769
Diagonal
29816411.836161
Surface area
2667055244350614
Volume
9.3717596445039E+21
Space diagonal
36517497.479637
Perimeter
63250161
Area
1.9247813290868E+14
Altitude
18258748.739819
Surface area
1.9247813290868E+14
Volume
1.1044724660465E+21
Height
9938803.9453869