21708910 is an even 8-digits composite number following 21708909
and preceding 21708911 . In scientific notation, it is written as 2.1708910 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8639136 positive integers (up to 21708910) that are relatively prime to 21708910.
21708910 has 16 divisors, whose sum is 39276000
The reverse of 21708910 is 01980712
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million seven hundred eight thousand nine hundred ten
Scientific notation
2.1708910 × 10^7
Engineering notation
2.1708910 × 10^6
Prime Factorization
2 × 5 × 199 × 10909
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21708910
Product of the distinct prime numbers
The prime factorization of 21708910 is 2 × 5 × 199 × 10909.
Since it has a total of 4 prime factors.
2 , 10 , 1 , 37 , 9 , 221 , 9121 , 8124 , 72655 , 10479 , 875347 , 950384 , 6945245 , 9822582 , 52754436 , 81104391 , 15271555 , 558271358 , 8478102793 , 6027541752
n×2
43417820
n×3
65126730
n×4
86835640
n×5
108544550
n÷2
10854455
n÷3
7236303.3333333
n÷3
5427227.5
n÷5
4341782
n2
471276773388100
n3
1.0230905058573E+22
n4
2.221017971351E+29
n5
4.8215879248441E+36
2 √n
4659.282133548
3 √n
278.96261537516
4 √n
68.258934459513
5 √n
29.331049553934
1 , 2 , 5 , 10 , 199 , 398 , 995 , 1990 , 10909 , 21818 , 54545 , 109090 , 2170891 , 4341782 , 10854455 , 21708910
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21708909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21708910 can be divided by 16 positive divisors.
The sum of these divisors (counting 21708910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110100000001101110
3
Ternary
1111211221000201
4
Quaternary
1102310001232
5
Quinary
21024141120
6
Senary
2053144114
8
Octal
122640156
10
Decimal
21708910
12
Duodecimal
732b03a
16
Hexadecimal
14b406e
20
Vigesimal
6fdc5a
36
Base36
cxapa
md5
f35b34e7a2f1c4fb45cd384fe19334ef
sha1
9b779f2a77235f48266ee034c3465fe32944a805
sha256
1fe5f634b2091bdb770ab254577993ea4b1f3fcd7fb9a2202b2df3971ddf6c90
sha512
3561995c228753254b910c09123f9b17ca19d00c9e33c2348fd63e6bd73d597bf802d5a0b41817cf96d36703ce1523553e3b8a2582a55a51420466fa68ff154f
ripemd-160
164e32482c8816c2b606ee1552af1c61202b4918
Diameter
43417820
Circumference
136401104.34688
Area
1.4805596490836E+15
Volume
4.2855114895449E+22
Surface area
5.9222385963342E+15
Circumference
136401104.34688
Perimeter
86835640
Area
471276773388100
Diagonal
30701034.946337
Surface area
2827660640328600
Volume
1.0230905058573E+22
Space diagonal
37600935.09694
Perimeter
65126730
Area
2.0406882898383E+14
Altitude
18800467.54847
Surface area
2.0406882898383E+14
Volume
1.2057237240987E+21
Height
10233678.315446