21207 is an odd 5-digits composite number following 21206
and preceding 21208 . In scientific notation, it is written as 2.1207 × 10^4.
The sum of its digits is 12. It has a total of 2 prime factors and 4 positive divisors.
There are 14136 positive integers (up to 21207) that are relatively prime to 21207.
21207 has 4 divisors, whose sum is 28280
The reverse of 21207 is 70212
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 12
Digital Root 3
Name
twenty-one thousand two hundred seven
Scientific notation
2.1207 × 10^4
Engineering notation
2.1207 × 10^3
Prime Factorization
3 × 7069
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21207
Product of the distinct prime numbers
The prime factorization of 21207 is 3 × 7069.
Since it has a total of 2 prime factors.
9 , 6 , 20 , 79 , 98 , 841 , 9067 , 8096 , 29366 , 12450 , 456393 , 88622 , 1139173 , 864511 , 30238966 , 37508237 , 494074879 , 732602692 , 7942498154 , 5553583654
n×2
42414
n×3
63621
n×4
84828
n×5
106035
n÷2
10603.5
n÷3
7069
n÷3
5301.75
n÷5
4241.4
n2
449736849
n3
9537569356743
n4
202263233348448801
n5
4.2893963896206E+21
2 √n
145.62623390035
3 √n
27.679595898853
4 √n
12.067569510898
5 √n
7.3332391319742
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
-21206
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 21207 can be divided by 4 positive divisors.
The sum of these divisors (counting 21207) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001011010111
3
Ternary
1002002110
4
Quaternary
11023113
5
Quinary
1134312
6
Senary
242103
8
Octal
51327
10
Decimal
21207
12
Duodecimal
10333
16
Hexadecimal
52d7
20
Vigesimal
2d07
36
Base36
gd3
md5
a59687b426e9eb30465997eb54862a2e
sha1
857345d664931fce76083dc260482f68fdd2e2fb
sha256
323b087d9a8d5c8f82269d462e36c121a4f0ffb6f5cecbf2084441019d5ba20c
sha512
4de5488b8833a0044348d6ae5ff77f9f3a76aea189960f9422c83505f2631c4c55ecc8b5136b97f0418ce2e8c039a5fcce2d4e64130db66def2df23bdf0f5df7
ripemd-160
19b599659f64e25be6d38f1a32b454cb3185f4f0
Diameter
42414
Circumference
133247.51080936
Area
1412889980.867
Volume
39950877098996
Surface area
5651559923.4681
Circumference
133247.51080936
Perimeter
84828
Area
449736849
Diagonal
29991.227017246
Surface area
2698421094
Volume
9537569356743
Space diagonal
36731.601476113
Perimeter
63621
Area
194741768.12598
Altitude
18365.800738057
Surface area
194741768.12598
Volume
1124013328031.7
Height
9997.0756724154