21291275 is an odd 8-digits composite number following 21291274
and preceding 21291276 . In scientific notation, it is written as 2.1291275 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 16954080 positive integers (up to 21291275) that are relatively prime to 21291275.
21291275 has 12 divisors, whose sum is 26523600
The reverse of 21291275 is 57219212
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million two hundred ninety-one thousand two hundred seventy-five
Scientific notation
2.1291275 × 10^7
Engineering notation
2.1291275 × 10^6
Prime Factorization
5 × 5 × 229 × 3719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4258255
Product of the distinct prime numbers
The prime factorization of 21291275 is 5 × 5 × 229 × 3719.
Since it has a total of 4 prime factors.
5 , 4 , 82 , 72 , 438 , 962 , 6981 , 7493 , 38819 , 20861 , 367284 , 119075 , 4099899 , 215568 , 7651576 , 54570009 , 132989759 , 755745434 , 9615130250 , 1238277530
n×2
42582550
n×3
63873825
n×4
85165100
n×5
106456375
n÷2
10645637.5
n÷3
7097091.6666667
n÷3
5322818.75
n÷5
4258255
n2
453318391125625
n3
9.6517265280132E+21
n4
2.0549756373273E+29
n5
4.3753051412635E+36
2 √n
4614.2469591473
3 √n
277.16212971209
4 √n
67.92824860945
5 √n
29.217317088631
1 , 5 , 25 , 229 , 1145 , 3719 , 5725 , 18595 , 92975 , 851651 , 4258255 , 21291275
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21291274
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291275 can be divided by 12 positive divisors.
The sum of these divisors (counting 21291275) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001001110000100001011
3
Ternary
1111001201010202
4
Quaternary
1101032010023
5
Quinary
20422310100
6
Senary
2040202415
8
Octal
121160413
10
Decimal
21291275
12
Duodecimal
716940b
16
Hexadecimal
144e10b
20
Vigesimal
6d183f
36
Base36
cocgb
md5
69790abbf2d25a2494ddab148e5c4cc5
sha1
d356b89673dee28e9659bb63549e063275c4ea50
sha256
fb3396d903aeb5cc70e4ccdda4da13afeeece74c5b7c0a8cfdfd74ffcc51667b
sha512
3c97c5a43a22c018a19a3cef71e06ee76b65b06d6f2f0eba5ba9cdc717b5be1d0112a37a74bced7c5947946d97893aebfc4d5308f5ec7b3d649ca9c2f3d5bfe9
ripemd-160
315dbaa8c7d6d5c22453540e4ba09ee3ed1b43b8
Diameter
42582550
Circumference
133777026.25112
Area
1.4241417272974E+15
Volume
4.0429057539819E+22
Surface area
5.6965669091896E+15
Circumference
133777026.25112
Perimeter
85165100
Area
453318391125625
Diagonal
30110409.865215
Surface area
2719910346753750
Volume
9.6517265280132E+21
Space diagonal
36877570.057921
Perimeter
63873825
Area
1.9629262135874E+14
Altitude
18438785.028961
Surface area
1.9629262135874E+14
Volume
1.137466879686E+21
Height
10036803.288405