21271805 is an odd 8-digits composite number following 21271804
and preceding 21271806 . In scientific notation, it is written as 2.1271805 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 17017440 positive integers (up to 21271805) that are relatively prime to 21271805.
21271805 has 4 divisors, whose sum is 25526172
The reverse of 21271805 is 50817212
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred seventy-one thousand eight hundred five
Scientific notation
2.1271805 × 10^7
Engineering notation
2.1271805 × 10^6
Prime Factorization
5 × 4254361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21271805
Product of the distinct prime numbers
The prime factorization of 21271805 is 5 × 4254361.
Since it has a total of 2 prime factors.
5 , 3 , 83 , 57 , 784 , 522 , 1467 , 417 , 44024 , 9951 , 782995 , 846223 , 8834823 , 4498108 , 6822002 , 33467468 , 757722531 , 60860420 , 4319688849 , 1173783564
n×2
42543610
n×3
63815415
n×4
85087220
n×5
106359025
n÷2
10635902.5
n÷3
7090601.6666667
n÷3
5317951.25
n÷5
4254361
n2
452489687958025
n3
9.625272406754E+21
n4
2.0474691770835E+29
n5
4.3553365078431E+36
2 √n
4612.1367065602
3 √n
277.07761946999
4 √n
67.912713880099
5 √n
29.211971524703
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
-21271804
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 21271805 can be divided by 4 positive divisors.
The sum of these divisors (counting 21271805) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001001010011111101
3
Ternary
1111000201102122
4
Quaternary
1101021103331
5
Quinary
20421144210
6
Senary
2035532325
8
Octal
121112375
10
Decimal
21271805
12
Duodecimal
715a0a5
16
Hexadecimal
14494fd
20
Vigesimal
6cija5
36
Base36
cnxfh
md5
b452b2f12ecc8c9f9a2719c024e4d640
sha1
9c9da2dd03db4f91311a8d61f12ab977bb83b1bb
sha256
97ae9d081c77330629a570f19acf3f24898ee6f65ce10314fdfd4ac2e12824cc
sha512
c3006aead359167e606db3da3759771880156d0b71b96b3b01612486a2cc5af53f020c392762e12f792bd76d0e7ed5f2fc52d7814a3dbb61ee5f350400971957
ripemd-160
98855d10c3e6df7771a5ff3c27c637eec5485fe6
Diameter
42543610
Circumference
133654692.63319
Area
1.4215382795141E+15
Volume
4.0318246775812E+22
Surface area
5.6861531180563E+15
Circumference
133654692.63319
Perimeter
85087220
Area
452489687958025
Diagonal
30082875.127156
Surface area
2714938127748150
Volume
9.625272406754E+21
Space diagonal
36843847.028698
Perimeter
63815415
Area
1.9593378236107E+14
Altitude
18421923.514349
Surface area
1.9593378236107E+14
Volume
1.1343492315972E+21
Height
10027625.042385