21130185 is an odd 8-digits composite number following 21130184
and preceding 21130186 . In scientific notation, it is written as 2.1130185 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 10584000 positive integers (up to 21130185) that are relatively prime to 21130185.
21130185 has 32 divisors, whose sum is 35896320
The reverse of 21130185 is 58103112
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred thirty thousand one hundred eighty-five
Scientific notation
2.1130185 × 10^7
Engineering notation
2.1130185 × 10^6
Prime Factorization
3 × 5 × 19 × 151 × 491
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21130185
Product of the distinct prime numbers
The prime factorization of 21130185 is 3 × 5 × 19 × 151 × 491.
Since it has a total of 5 prime factors.
6 , 4 , 5 , 26 , 193 , 287 , 5566 , 8844 , 47441 , 57689 , 972506 , 261546 , 5521273 , 5626266 , 9425771 , 17618513 , 570513339 , 578901054 , 7503590427 , 2706321175
n×2
42260370
n×3
63390555
n×4
84520740
n×5
105650925
n÷2
10565092.5
n÷3
7043395
n÷3
5282546.25
n÷5
4226037
n2
446484718134225
n3
9.434304693849E+21
n4
1.993486035274E+29
n5
4.2122728720256E+36
2 √n
4596.758096746
3 √n
276.46135555761
4 √n
67.799395991012
5 √n
29.172970972737
1 , 3 , 5 , 15 , 19 , 57 , 95 , 151 , 285 , 453 , 491 , 755 , 1473 , 2265 , 2455 , 2869 , 7365 , 8607 , 9329 , 14345 , 27987 , 43035 , 46645 , 74141 , 139935 , 222423 , 370705 , 1112115 , 1408679 , 4226037 , 7043395 , 21130185
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21130184
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21130185 can be divided by 32 positive divisors.
The sum of these divisors (counting 21130185) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000100110101111001001
3
Ternary
1110202112011110
4
Quaternary
1100212233021
5
Quinary
20402131220
6
Senary
2032520533
8
Octal
120465711
10
Decimal
21130185
12
Duodecimal
70b0149
16
Hexadecimal
1426bc9
20
Vigesimal
6c1595
36
Base36
ckw5l
md5
4fd36b93dbf7cecd8daec7205765b9b4
sha1
bf83a6497013166a9c7305788ddcdd5c355cf40f
sha256
652437765641a9100265ec382f2f89c7e200a71f383cca52a2d165c2f529dd32
sha512
a43c4cdaebfc5bb88d10df6ebeb4541bad52b1c1cdd4937e65f0dff04b1aac337ddfce778a3fefb53373f19effedb4e956d34fd15c785895521f98224f185872
ripemd-160
8f027cc634bad67ce52f16632c9cd3c5ac673b5b
Diameter
42260370
Circumference
132764867.92999
Area
1.4026731104306E+15
Volume
3.9518323090565E+22
Surface area
5.6106924417224E+15
Circumference
132764867.92999
Perimeter
84520740
Area
446484718134225
Diagonal
29882594.202453
Surface area
2678908308805350
Volume
9.434304693849E+21
Space diagonal
36598553.99333
Perimeter
63390555
Area
1.9333355415289E+14
Altitude
18299276.996665
Surface area
1.9333355415289E+14
Volume
1.1118434708001E+21
Height
9960864.7341508