21051539 is an odd 8-digits composite number following 21051538
and preceding 21051540 . In scientific notation, it is written as 2.1051539 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20797824 positive integers (up to 21051539) that are relatively prime to 21051539.
21051539 has 4 divisors, whose sum is 21305256
The reverse of 21051539 is 93515012
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million fifty-one thousand five hundred thirty-nine
Scientific notation
2.1051539 × 10^7
Engineering notation
2.1051539 × 10^6
Prime Factorization
83 × 253633
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21051539
Product of the distinct prime numbers
The prime factorization of 21051539 is 83 × 253633.
Since it has a total of 2 prime factors.
8 , 10 , 7 , 49 , 467 , 215 , 8459 , 8284 , 55783 , 85834 , 389648 , 344962 , 6859837 , 9509645 , 98154646 , 46250181 , 182765650 , 437269358 , 6933678271 , 6614576985
n×2
42103078
n×3
63154617
n×4
84206156
n×5
105257695
n÷2
10525769.5
n÷3
7017179.6666667
n÷3
5262884.75
n÷5
4210307.8
n2
443167294268521
n3
9.3293535788182E+21
n4
1.9639725070928E+29
n5
4.1344643827992E+36
2 √n
4588.195614836
3 √n
276.11793514124
4 √n
67.736220848494
5 √n
29.151222361365
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
-21051538
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 21051539 can be divided by 4 positive divisors.
The sum of these divisors (counting 21051539) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010011100010010011
3
Ternary
1110121112021122
4
Quaternary
1100103202103
5
Quinary
20342122124
6
Senary
2031112455
8
Octal
120234223
10
Decimal
21051539
12
Duodecimal
707272b
16
Hexadecimal
1413893
20
Vigesimal
6bb8gj
36
Base36
cj7gz
md5
4e80a03a33a288422bb808519e95530f
sha1
948ebe99ddf7a78d492048eb67b0d44a33a5c052
sha256
0a19b0104c59fae95cf54221d02559f72775e9de5c6eaa6da54c4efeb04546a9
sha512
135e040d75e8a7470c3de977f7b2b743aaee0b5b795fe8c4e3a24532f262d1b0c823bbf083c0055cc80f65635cef135d1b350c9de22a9b2207fc347202a22686
ripemd-160
596ae474cbcb8bf1e58336836727041c7ce3d614
Diameter
42103078
Circumference
132270720.53832
Area
1.3922511159853E+15
Volume
3.9078704887943E+22
Surface area
5.569004463941E+15
Circumference
132270720.53832
Perimeter
84206156
Area
443167294268521
Diagonal
29771371.962626
Surface area
2659003765611126
Volume
9.3293535788182E+21
Space diagonal
36462335.125518
Perimeter
63154617
Area
1.9189706748148E+14
Altitude
18231167.562759
Surface area
1.9189706748148E+14
Volume
1.0994748632782E+21
Height
9923790.6542087