21709 is an odd 5-digits composite number following 21708
and preceding 21710 . In scientific notation, it is written as 2.1709 × 10^4.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20416 positive integers (up to 21709) that are relatively prime to 21709.
21709 has 4 divisors, whose sum is 23004
The reverse of 21709 is 90712
Previous prime number is 1277
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 19
Digital Root 1
Name
twenty-one thousand seven hundred nine
Scientific notation
2.1709 × 10^4
Engineering notation
2.1709 × 10^3
Prime Factorization
1277 × 17
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21709
Product of the distinct prime numbers
The prime factorization of 21709 is 1277 × 17.
Since it has a total of 2 prime factors.
8 , 1 , 66 , 99 , 588 , 747 , 1272 , 3937 , 20806 , 4586 , 757318 , 719057 , 9556304 , 9556626 , 17583976 , 94106021 , 97121812 , 438656717 , 1728103978 , 6528265656
n×2
43418
n×3
65127
n×4
86836
n×5
108545
n÷2
10854.5
n÷3
7236.3333333333
n÷3
5427.25
n÷5
4341.8
n2
471280681
n3
10231032303829
n4
222105480283823761
n5
4.8216878714815E+21
2 √n
147.3397434503
3 √n
27.896300087894
4 √n
12.138358350712
5 √n
7.367632648523
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21708
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21709 can be divided by 4 positive divisors.
The sum of these divisors (counting 21709) is 1, the average is 0.25.
Base
System
Value
2
Binary
101010011001101
3
Ternary
1002210001
4
Quaternary
11103031
5
Quinary
1143314
6
Senary
244301
8
Octal
52315
10
Decimal
21709
12
Duodecimal
10691
16
Hexadecimal
54cd
20
Vigesimal
2e59
36
Base36
gr1
md5
7496bfb74b0737a432d357c6de4b50d0
sha1
ddd4a31f032de5c731f9d333ec9fc1c7ae17d5ce
sha256
b9cc85845b2130644290ca7f39688d7fb1fa6352182ba6341797c21b5730399d
sha512
b998b9eb974cb34128c1edb35bc0ab7c81d4d7a8079966ec750af78223079153e09e1e854e62a92adbb1a91067b7faf6c60bb620a4f21a26095c2c6225af7786
ripemd-160
72faf76b9774c49f9a018ad21836175c69fb5464
Diameter
43418
Circumference
136401.66983356
Area
1480571925.2084
Volume
42855647899132
Surface area
5922287700.8336
Circumference
136401.66983356
Perimeter
86836
Area
471280681
Diagonal
30701.162225558
Surface area
2827684086
Volume
10231032303829
Space diagonal
37601.090981513
Perimeter
65127
Area
204070521.02942
Altitude
18800.545490756
Surface area
204070521.02942
Volume
1205738720096
Height
10233.720741853