21131757 is an odd 8-digits composite number following 21131756
and preceding 21131758 . In scientific notation, it is written as 2.1131757 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 14069448 positive integers (up to 21131757) that are relatively prime to 21131757.
21131757 has 12 divisors, whose sum is 30563520
The reverse of 21131757 is 75713112
Previous prime number is 1487
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred thirty-one thousand seven hundred fifty-seven
Scientific notation
2.1131757 × 10^7
Engineering notation
2.1131757 × 10^6
Prime Factorization
3 × 3 × 1487 × 1579
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7043919
Product of the distinct prime numbers
The prime factorization of 21131757 is 3 × 3 × 1487 × 1579.
Since it has a total of 4 prime factors.
1 , 10 , 78 , 17 , 388 , 983 , 6577 , 3370 , 31162 , 27799 , 673466 , 521459 , 5334003 , 821956 , 31631133 , 1224948 , 273780017 , 783454063 , 512413110 , 118262223
n×2
42263514
n×3
63395271
n×4
84527028
n×5
105658785
n÷2
10565878.5
n÷3
7043919
n÷3
5282939.25
n÷5
4226351.4
n2
446551153907049
n3
9.4364104724334E+21
n4
1.9940793305572E+29
n5
4.2138399852057E+36
2 √n
4596.9290836383
3 √n
276.46821125518
4 √n
67.800656955802
5 √n
29.173405029947
1 , 3 , 9 , 1487 , 1579 , 4461 , 4737 , 13383 , 14211 , 2347973 , 7043919 , 21131757
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
-21131756
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 21131757 can be divided by 12 positive divisors.
The sum of these divisors (counting 21131757) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000100111000111101101
3
Ternary
1110202121022200
4
Quaternary
1100213013231
5
Quinary
20402204012
6
Senary
2032532113
8
Octal
120470755
10
Decimal
21131757
12
Duodecimal
70b1039
16
Hexadecimal
14271ed
20
Vigesimal
6c197h
36
Base36
ckxd9
md5
4b01541c4f6b986f86c423ffc80fc5a4
sha1
546d3951475b1abf99bb701db06f26033358ee2c
sha256
780ed68448ecb35a8100bf324ada4f819cbc802368299d89f0a87d16a905fe3c
sha512
82b6b799a1b6626cb371687e2f61baaec609495d4d28f095870a792771adb5281500f3e37fb67afe5290117a15800f1424f71d31032949d83d5922aac427e0e3
ripemd-160
2ad518a8544d8c37e6606d3c53f0e08c83f4dc5e
Diameter
42263514
Circumference
132774745.09729
Area
1.4028818245664E+15
Volume
3.9527143755273E+22
Surface area
5.6115272982657E+15
Circumference
132774745.09729
Perimeter
84527028
Area
446551153907049
Diagonal
29884817.346173
Surface area
2679306923442294
Volume
9.4364104724334E+21
Space diagonal
36601276.777199
Perimeter
63395271
Area
1.9336232168638E+14
Altitude
18300638.3886
Surface area
1.9336232168638E+14
Volume
1.1120916391862E+21
Height
9961605.7820575