21708085 is an odd 8-digits composite number following 21708084
and preceding 21708086 . In scientific notation, it is written as 2.1708085 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 14482368 positive integers (up to 21708085) that are relatively prime to 21708085.
21708085 has 16 divisors, whose sum is 30577536
The reverse of 21708085 is 58080712
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million seven hundred eight thousand eighty-five
Scientific notation
2.1708085 × 10^7
Engineering notation
2.1708085 × 10^6
Prime Factorization
7 × 5 × 37 × 16763
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21708085
Product of the distinct prime numbers
The prime factorization of 21708085 is 7 × 5 × 37 × 16763.
Since it has a total of 4 prime factors.
10 , 8 , 9 , 10 , 717 , 899 , 193 , 4235 , 55160 , 11455 , 351790 , 692519 , 1723715 , 5173372 , 49342924 , 87479405 , 499511340 , 204829621 , 4244870070 , 1955962701
n×2
43416170
n×3
65124255
n×4
86832340
n×5
108540425
n÷2
10854042.5
n÷3
7236028.3333333
n÷3
5427021.25
n÷5
4341617
n2
471240954367225
n3
1.0229738692885E+22
n4
2.2206803707293E+29
n5
4.8206718245624E+36
2 √n
4659.1935997552
3 √n
278.95908154084
4 √n
68.258285942113
5 √n
29.330826617971
1 , 5 , 7 , 35 , 37 , 185 , 259 , 1295 , 16763 , 83815 , 117341 , 586705 , 620231 , 3101155 , 4341617 , 21708085
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
-21708084
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 21708085 can be divided by 16 positive divisors.
The sum of these divisors (counting 21708085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110011110100110101
3
Ternary
1111211212220011
4
Quaternary
1102303310311
5
Quinary
21024124320
6
Senary
2053140221
8
Octal
122636465
10
Decimal
21708085
12
Duodecimal
732a671
16
Hexadecimal
14b3d35
20
Vigesimal
6fda45
36
Base36
cxa2d
md5
086262c60ac044b03c61766eb9312064
sha1
35f0ec76f059002b00348b62380606ac4046555e
sha256
5e25b137dcf465e35eacc6573376911b590a275fcd6fcbd7bb93161b37b4af6f
sha512
2ae698d4e2481a7cd4095aed566916faaf6aaa2cec3903a23b27dd53f67a22f07a315e4685c1eb9d4684150716f480ed0101fbd5e184af96e348d18465a61506
ripemd-160
ec01dd9d975ffe29ad23cc56331fa690aace97a4
Diameter
43416170
Circumference
136395920.71901
Area
1.4804471203107E+15
Volume
4.285022923428E+22
Surface area
5.9217884812429E+15
Circumference
136395920.71901
Perimeter
86832340
Area
471240954367225
Diagonal
30699868.220148
Surface area
2827445726203350
Volume
1.0229738692885E+22
Space diagonal
37599506.155024
Perimeter
65124255
Area
2.0405331889282E+14
Altitude
18799753.077512
Surface area
2.0405331889282E+14
Volume
1.2055862665842E+21
Height
10233289.406716