21307839 is an odd 8-digits composite number following 21307838
and preceding 21307840 . In scientific notation, it is written as 2.1307839 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12130848 positive integers (up to 21307839) that are relatively prime to 21307839.
21307839 has 16 divisors, whose sum is 32589312
The reverse of 21307839 is 93870312
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million three hundred seven thousand eight hundred thirty-nine
Scientific notation
2.1307839 × 10^7
Engineering notation
2.1307839 × 10^6
Prime Factorization
3 × 7 × 293 × 3463
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21307839
Product of the distinct prime numbers
The prime factorization of 21307839 is 3 × 7 × 293 × 3463.
Since it has a total of 4 prime factors.
3 , 5 , 31 , 97 , 524 , 812 , 8302 , 7857 , 39103 , 36612 , 767601 , 268312 , 6944782 , 8736687 , 63204409 , 41727673 , 225745733 , 607265046 , 9500551647 , 9494625516
n×2
42615678
n×3
63923517
n×4
85231356
n×5
106539195
n÷2
10653919.5
n÷3
7102613
n÷3
5326959.75
n÷5
4261567.8
n2
454024002849921
n3
9.6742703548617E+21
n4
2.0613779516387E+29
n5
4.3923509511666E+36
2 √n
4616.0414859488
3 √n
277.23398580491
4 √n
67.941456313129
5 √n
29.2218617212
1 , 3 , 7 , 21 , 293 , 879 , 2051 , 3463 , 6153 , 10389 , 24241 , 72723 , 1014659 , 3043977 , 7102613 , 21307839
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
-21307838
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 21307839 can be divided by 16 positive divisors.
The sum of these divisors (counting 21307839) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001010010000110111111
3
Ternary
1111002112212020
4
Quaternary
1101102012333
5
Quinary
20423322324
6
Senary
2040411223
8
Octal
121220677
10
Decimal
21307839
12
Duodecimal
7176b13
16
Hexadecimal
14521bf
20
Vigesimal
6d39bj
36
Base36
cop8f
md5
a12ca78f1ca675859e613394fc76e315
sha1
5dae07a72e9c968e54d9ffdecbbc9f63039e53aa
sha256
e049a286dda8c5cff648cd2498f404accf38fb0adf9bad56f2522f48e39597d2
sha512
96109ce35ee013373993683d3362b5e29f68f0a4bfcd8293f14ecd55c7b27978d2671ffb4fe897c74652253ff989566df8dbd4ff2a675c6f161485b49a6b3579
ripemd-160
216c25e0c0edc6a52d1b49bf266c39ae41ccab10
Diameter
42615678
Circumference
133881100.93255
Area
1.4263584719067E+15
Volume
4.05234889009E+22
Surface area
5.705433887627E+15
Circumference
133881100.93255
Perimeter
85231356
Area
454024002849921
Diagonal
30133834.898662
Surface area
2724144017099526
Volume
9.6742703548617E+21
Space diagonal
36906259.747498
Perimeter
63923517
Area
1.9659816019796E+14
Altitude
18453129.873749
Surface area
1.9659816019796E+14
Volume
1.1401236951591E+21
Height
10044611.632887