21051557 is an odd 8-digits composite number following 21051556
and preceding 21051558 . In scientific notation, it is written as 2.1051557 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 20328192 positive integers (up to 21051557) that are relatively prime to 21051557.
21051557 has 8 divisors, whose sum is 21783576
The reverse of 21051557 is 75515012
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million fifty-one thousand five hundred fifty-seven
Scientific notation
2.1051557 × 10^7
Engineering notation
2.1051557 × 10^6
Prime Factorization
137 × 37 × 4153
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21051557
Product of the distinct prime numbers
The prime factorization of 21051557 is 137 × 37 × 4153.
Since it has a total of 3 prime factors.
3 , 3 , 60 , 94 , 799 , 403 , 9081 , 8883 , 49626 , 93010 , 252503 , 373002 , 4783968 , 9463372 , 27864835 , 17949949 , 735978742 , 596348103 , 391370161 , 1969191220
n×2
42103114
n×3
63154671
n×4
84206228
n×5
105257785
n÷2
10525778.5
n÷3
7017185.6666667
n÷3
5262889.25
n÷5
4210311.4
n2
443168052124249
n3
9.3293775098726E+21
n4
1.963979224236E+29
n5
4.134482058582E+36
2 √n
4588.197576391
3 √n
276.11801383892
4 √n
67.736235327858
5 √n
29.151227346481
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21051556
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21051557 can be divided by 8 positive divisors.
The sum of these divisors (counting 21051557) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010011100010100101
3
Ternary
1110121112022022
4
Quaternary
1100103202211
5
Quinary
20342122212
6
Senary
2031112525
8
Octal
120234245
10
Decimal
21051557
12
Duodecimal
7072745
16
Hexadecimal
14138a5
20
Vigesimal
6bb8hh
36
Base36
cj7hh
md5
cefef5d9bb48cba2534bb3c1b365322e
sha1
a51c2056ec8553c63daa5cdf9eddb9db3dc5a5cb
sha256
7060a056fe06af2f9e01bcfb079682940cbce60fd9d5038d0a19a5c7e02aa055
sha512
c612f2d900fc5192cce2f9b93087936eae1d46920b1bc72c36032bf47e5c929bc367b29415ae0a8a4fd02ec7ea8687d168f9bdc5471d108a28ab3b57315a612e
ripemd-160
ccf008f6b0331e8d10ba933456f375e4ef51ccfe
Diameter
42103114
Circumference
132270833.63565
Area
1.3922534968592E+15
Volume
3.9078805130109E+22
Surface area
5.569013987437E+15
Circumference
132270833.63565
Perimeter
84206228
Area
443168052124249
Diagonal
29771397.41847
Surface area
2659008312745494
Volume
9.3293775098726E+21
Space diagonal
36462366.302432
Perimeter
63154671
Area
1.9189739564263E+14
Altitude
18231183.151216
Surface area
1.9189739564263E+14
Volume
1.09947768358E+21
Height
9923799.1394901