21821708 is an even 8-digits composite number following 21821707
and preceding 21821709 . In scientific notation, it is written as 2.1821708 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 10757040 positive integers (up to 21821708) that are relatively prime to 21821708.
21821708 has 12 divisors, whose sum is 38726352
The reverse of 21821708 is 80712812
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million eight hundred twenty-one thousand seven hundred eight
Scientific notation
2.1821708 × 10^7
Engineering notation
2.1821708 × 10^6
Prime Factorization
2 × 2 × 71 × 76837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10910854
Product of the distinct prime numbers
The prime factorization of 21821708 is 2 × 2 × 71 × 76837.
Since it has a total of 4 prime factors.
6 , 8 , 22 , 75 , 121 , 275 , 6185 , 505 , 56050 , 36935 , 516325 , 793611 , 5705181 , 5433753 , 98318912 , 76344978 , 908480364 , 202803069 , 6191955223 , 5298830668
n×2
43643416
n×3
65465124
n×4
87286832
n×5
109108540
n÷2
10910854
n÷3
7273902.6666667
n÷3
5455427
n÷5
4364341.6
n2
476186940037264
n3
1.0391212358907E+22
n4
2.2675400186205E+29
n5
4.9481596164652E+36
2 √n
4671.3711049327
3 √n
279.4449378062
4 √n
68.347429395206
5 √n
29.361466823393
1 , 2 , 4 , 71 , 142 , 284 , 76837 , 153674 , 307348 , 5455427 , 10910854 , 21821708
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21821707
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21821708 can be divided by 12 positive divisors.
The sum of these divisors (counting 21821708) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011001111100100001100
3
Ternary
1112001122202102
4
Quaternary
1103033210030
5
Quinary
21041243313
6
Senary
2055414232
8
Octal
123174414
10
Decimal
21821708
12
Duodecimal
7384378
16
Hexadecimal
14cf90c
20
Vigesimal
6g7e58
36
Base36
czpqk
md5
283da28457f725681514b507493b3501
sha1
dcfcdf9507dbf2b6b73b86541cbb25d6edc4eee6
sha256
86d57bbd4987b506280c6ad26a3c3f26e218eb24e95c2b8f804c7795b16d7073
sha512
5724ad0673e9e28fd66c9ebd5ee910472fcd73839ac919ac28dfa9c06eb507a55309006d747f1bffe83a1a63016cbbb6d4fbcf683d847f3ed0847175f1ade427
ripemd-160
56d42a8d81fef9db4c2b24a5e676905c7e080b3b
Diameter
43643416
Circumference
137109835.08316
Area
1.4959853925565E+15
Volume
4.3526608544844E+22
Surface area
5.9839415702259E+15
Circumference
137109835.08316
Perimeter
87286832
Area
476186940037264
Diagonal
30860555.407745
Surface area
2857121640223584
Volume
1.0391212358907E+22
Space diagonal
37796306.963932
Perimeter
65465124
Area
2.0619499351132E+14
Altitude
18898153.481966
Surface area
2.0619499351132E+14
Volume
1.2246161206221E+21
Height
10286851.802582