21308539 is an odd 8-digits composite number following 21308538
and preceding 21308540 . In scientific notation, it is written as 2.1308539 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18221760 positive integers (up to 21308539) that are relatively prime to 21308539.
21308539 has 8 divisors, whose sum is 24409568
The reverse of 21308539 is 93580312
Previous prime number is 457
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million three hundred eight thousand five hundred thirty-nine
Scientific notation
2.1308539 × 10^7
Engineering notation
2.1308539 × 10^6
Prime Factorization
7 × 457 × 6661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21308539
Product of the distinct prime numbers
The prime factorization of 21308539 is 7 × 457 × 6661.
Since it has a total of 3 prime factors.
2 , 7 , 83 , 4 , 794 , 725 , 2377 , 5934 , 45359 , 43093 , 5771 , 947366 , 1494548 , 6329084 , 68728966 , 30576939 , 888616724 , 80631571 , 585919470 , 2136974835
n×2
42617078
n×3
63925617
n×4
85234156
n×5
106542695
n÷2
10654269.5
n÷3
7102846.3333333
n÷3
5327134.75
n÷5
4261707.8
n2
454053834314521
n3
9.6752238365905E+21
n4
2.0616488445572E+29
n5
4.3930724808552E+36
2 √n
4616.1173078682
3 √n
277.23702164639
4 √n
67.942014305348
5 √n
29.222053716592
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21308538
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308539 can be divided by 8 positive divisors.
The sum of these divisors (counting 21308539) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010010010001111011
3
Ternary
1111002120211011
4
Quaternary
1101102101323
5
Quinary
20423333124
6
Senary
2040414351
8
Octal
121222173
10
Decimal
21308539
12
Duodecimal
71773b7
16
Hexadecimal
145247b
20
Vigesimal
6d3b6j
36
Base36
coprv
md5
846e0194ea017a88102b7b2ec11e9406
sha1
423bff5bcb007a255eeefd94a0b26c99d6c4957e
sha256
4c8ccf0cac9f19c58959281b6c5c19281cca794faad7f06c05586c17e9c556f8
sha512
86c52c4a9af274221f6e276916ed0ff03f601f9b2d7283b91ba9056d865eeb4ab464a8cd72b0f7b763b10309f90bccc48a248ec5cb3563aec22fa06e19b332ab
ripemd-160
0d85b49bf106aab25407724dc508e9bb727cbcc3
Diameter
42617078
Circumference
133885499.16226
Area
1.4264521902168E+15
Volume
4.0527482835826E+22
Surface area
5.7058087608671E+15
Circumference
133885499.16226
Perimeter
85234156
Area
454053834314521
Diagonal
30134824.848156
Surface area
2724323005887126
Volume
9.6752238365905E+21
Space diagonal
36907472.183063
Perimeter
63925617
Area
1.9661107760105E+14
Altitude
18453736.091531
Surface area
1.9661107760105E+14
Volume
1.1402360640585E+21
Height
10044941.616052