21072555 is an odd 8-digits composite number following 21072554
and preceding 21072556 . In scientific notation, it is written as 2.1072555 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 9631872 positive integers (up to 21072555) that are relatively prime to 21072555.
21072555 has 16 divisors, whose sum is 33899040
The reverse of 21072555 is 55527012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million seventy-two thousand five hundred fifty-five
Scientific notation
2.1072555 × 10^7
Engineering notation
2.1072555 × 10^6
Prime Factorization
189 × 3 × 5 × 7433
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21072555
Product of the distinct prime numbers
The prime factorization of 21072555 is 189 × 3 × 5 × 7433.
Since it has a total of 4 prime factors.
4 , 8 , 47 , 27 , 844 , 760 , 7086 , 2082 , 8740 , 86460 , 581580 , 239501 , 2373964 , 5552466 , 92748293 , 63508080 , 721802472 , 397531711 , 767579265 , 5424409869
n×2
42145110
n×3
63217665
n×4
84290220
n×5
105362775
n÷2
10536277.5
n÷3
7024185
n÷3
5268138.75
n÷5
4214511
n2
444052574228025
n3
9.3573222933116E+21
n4
1.9718268867854E+29
n5
4.1551430522263E+36
2 √n
4590.4852684656
3 √n
276.20978851378
4 √n
67.753119990637
5 √n
29.157040440437
1 , 3 , 5 , 15 , 189 , 567 , 945 , 2835 , 7433 , 22299 , 37165 , 111495 , 1404837 , 4214511 , 7024185 , 21072555
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
-21072554
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 21072555 can be divided by 16 positive divisors.
The sum of these divisors (counting 21072555) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011000101010101011
3
Ternary
1110122121010000
4
Quaternary
1100120222223
5
Quinary
20343310210
6
Senary
2031354043
8
Octal
120305253
10
Decimal
21072555
12
Duodecimal
7082923
16
Hexadecimal
1418aab
20
Vigesimal
6be17f
36
Base36
cjnor
md5
11607203e7a63733c7f3181d0a998a4f
sha1
356ba47248aa55855bf8e9959ea2ed2b1c630810
sha256
e8a428c637ed8df30705c42276dec6018351a95e5d9f5cf06d8411ea171cb73a
sha512
1173b4039a163998d5f6a87b9c0acf725631fcfff5f346a8fbef83ea35e17d18c6f422ebb21d4f7ef526f0901df60e4dd962bb443de039785389d7c8a06ac1fa
ripemd-160
7d23dfad319aa54e400872278892fac01cbeeccf
Diameter
42145110
Circumference
132402767.96073
Area
1.3950323050024E+15
Volume
3.9195859965253E+22
Surface area
5.5801292200096E+15
Circumference
132402767.96073
Perimeter
84290220
Area
444052574228025
Diagonal
29801093.074853
Surface area
2664315445368150
Volume
9.3573222933116E+21
Space diagonal
36498735.90529
Perimeter
63217665
Area
1.9228040494867E+14
Altitude
18249367.952645
Surface area
1.9228040494867E+14
Volume
1.1027710078915E+21
Height
9933697.6916177