21082521 is an odd 8-digits composite number following 21082520
and preceding 21082522 . In scientific notation, it is written as 2.1082521 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 14031072 positive integers (up to 21082521) that are relatively prime to 21082521.
21082521 has 8 divisors, whose sum is 28157920
The reverse of 21082521 is 12528012
Previous prime number is 11353
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eighty-two thousand five hundred twenty-one
Scientific notation
2.1082521 × 10^7
Engineering notation
2.1082521 × 10^6
Prime Factorization
3 × 11353 × 619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082521
Product of the distinct prime numbers
The prime factorization of 21082521 is 3 × 11353 × 619.
Since it has a total of 3 prime factors.
6 , 4 , 18 , 45 , 55 , 262 , 8608 , 9302 , 17748 , 53991 , 770149 , 723606 , 5865483 , 4839061 , 28055187 , 56554122 , 461969064 , 116234297 , 7167657372 , 4171580724
n×2
42165042
n×3
63247563
n×4
84330084
n×5
105412605
n÷2
10541260.5
n÷3
7027507
n÷3
5270630.25
n÷5
4216504.2
n2
444472691715441
n3
9.3706048570173E+21
n4
1.9755597368077E+29
n5
4.1649779638003E+36
2 √n
4591.5706463039
3 √n
276.25332496698
4 √n
67.761129316917
5 √n
29.159797810014
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
-21082520
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 21082521 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011000110011001
3
Ternary
1110200002210010
4
Quaternary
1100123012121
5
Quinary
20344120041
6
Senary
2031512133
8
Octal
120330631
10
Decimal
21082521
12
Duodecimal
7088649
16
Hexadecimal
141b199
20
Vigesimal
6bf661
36
Base36
cjvdl
md5
c928be3839285abf49faec8ab28506da
sha1
e6bc34d4734ef345af5558c44b3f181946e6b76f
sha256
8504f7b293d2800f2b7de626b0c6b8ccb40c9efd22b9ee731081c237eedf298b
sha512
407abd0ab0340ada370ccfc795b6bfec2480c042e9acb904eb10b9c2d169a08a56a40442f850a872c1ffe1cdde9fc47c1f58be6d7fe029df82781172d6fde6d6
ripemd-160
6b70c950db795faca9592268032dbfcb50b9f00c
Diameter
42165042
Circumference
132465386.18551
Area
1.3963521430145E+15
Volume
3.9251497837998E+22
Surface area
5.585408572058E+15
Circumference
132465386.18551
Perimeter
84330084
Area
444472691715441
Diagonal
29815187.127216
Surface area
2666836150292646
Volume
9.3706048570173E+21
Space diagonal
36515997.523638
Perimeter
63247563
Area
1.9246232115701E+14
Altitude
18257998.761819
Surface area
1.9246232115701E+14
Volume
1.1043363730361E+21
Height
9938395.7090719