21307856 is an even 8-digits composite number following 21307855
and preceding 21307857 . In scientific notation, it is written as 2.1307856 × 10^7.
The sum of its digits is 32. It has a total of 6 prime factors and 20 positive divisors.
There are 10365696 positive integers (up to 21307856) that are relatively prime to 21307856.
21307856 has 20 divisors, whose sum is 42400932
The reverse of 21307856 is 65870312
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million three hundred seven thousand eight hundred fifty-six
Scientific notation
2.1307856 × 10^7
Engineering notation
2.1307856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 37 × 35993
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2663482
Product of the distinct prime numbers
The prime factorization of 21307856 is 2 × 2 × 2 × 2 × 37 × 35993.
Since it has a total of 6 prime factors.
1 , 6 , 26 , 71 , 633 , 271 , 3898 , 5947 , 91954 , 60097 , 436921 , 651956 , 9928864 , 4345816 , 32744088 , 87754118 , 529982219 , 259178706 , 4596672621 , 2341767998
n×2
42615712
n×3
63923568
n×4
85231424
n×5
106539280
n÷2
10653928
n÷3
7102618.6666667
n÷3
5326964
n÷5
4261571.2
n2
454024727316736
n3
9.6742935101043E+21
n4
2.0613845301504E+29
n5
4.3923684729072E+36
2 √n
4616.043327353
3 √n
277.23405953327
4 √n
67.941469864531
5 √n
29.221866384005
1 , 2 , 4 , 8 , 16 , 37 , 74 , 148 , 296 , 592 , 35993 , 71986 , 143972 , 287944 , 575888 , 1331741 , 2663482 , 5326964 , 10653928 , 21307856
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21307855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21307856 can be divided by 20 positive divisors.
The sum of these divisors (counting 21307856) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010001010010000111010000
3
Ternary
1111002112212212
4
Quaternary
1101102013100
5
Quinary
20423322411
6
Senary
2040411252
8
Octal
121220720
10
Decimal
21307856
12
Duodecimal
7176b28
16
Hexadecimal
14521d0
20
Vigesimal
6d39cg
36
Base36
cop8w
md5
69244809e83b98ef5f61d337b2d45b5b
sha1
54f6a0a2505baa8db5cbc654dcbd3e274c444c9b
sha256
846b3b0591fab6dfa7644183b36847642f01f241092ee98c38ac2bac0dfafa17
sha512
6f61b785da6a714961a59ad197d1eb39ae067a9bf35245d28598451218fa320deebc8b578237376e43b33f4cfdbd05af340ea1686533c7968f24005def5812ea
ripemd-160
db9e88ffa1ea21405b9b33817c5671ab1a13c72c
Diameter
42615712
Circumference
133881207.7467
Area
1.4263607478864E+15
Volume
4.0523585893353E+22
Surface area
5.7054429915455E+15
Circumference
133881207.7467
Perimeter
85231424
Area
454024727316736
Diagonal
30133858.940293
Surface area
2724148363900416
Volume
9.6742935101043E+21
Space diagonal
36906289.192361
Perimeter
63923568
Area
1.965984739013E+14
Altitude
18453144.596181
Surface area
1.965984739013E+14
Volume
1.1401264240306E+21
Height
10044619.646764