21051557 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-one million fifty-one thousand five hundred fifty-seven

Notation

Scientific notation 2.1051557 × 10^7
Engineering notation 2.1051557 × 10^6

Prime Factorization of 21051557

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.

Most popular turbo-numbers

Basic calculations (n = 21051557)

Multiplication

n×y
n×2 42103114
n×3 63154671
n×4 84206228
n×5 105257785

Division

n÷y
n÷2 10525778.5
n÷3 7017185.6666667
n÷3 5262889.25
n÷5 4210311.4

Exponentiation

ny
n2 443168052124249
n3 9.3293775098726E+21
n4 1.963979224236E+29
n5 4.134482058582E+36

Nth Root

y√n
2√n 4588.197576391
3√n 276.11801383892
4√n 67.736235327858
5√n 29.151227346481

Divisors of 21051557

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 conversion 21051557

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

Cryptographic Hash Functions

md5 cefef5d9bb48cba2534bb3c1b365322e
sha1 a51c2056ec8553c63daa5cdf9eddb9db3dc5a5cb
sha256 7060a056fe06af2f9e01bcfb079682940cbce60fd9d5038d0a19a5c7e02aa055
sha512 c612f2d900fc5192cce2f9b93087936eae1d46920b1bc72c36032bf47e5c929bc367b29415ae0a8a4fd02ec7ea8687d168f9bdc5471d108a28ab3b57315a612e
ripemd-160 ccf008f6b0331e8d10ba933456f375e4ef51ccfe

21051557 as geometric shapes

Circle

Radius = n
Diameter 42103114
Circumference 132270833.63565
Area 1.3922534968592E+15

Sphere

Radius = n
Volume 3.9078805130109E+22
Surface area 5.569013987437E+15
Circumference 132270833.63565

Square

Length = n
Perimeter 84206228
Area 443168052124249
Diagonal 29771397.41847

Cube

Length = n
Surface area 2659008312745494
Volume 9.3293775098726E+21
Space diagonal 36462366.302432

Equilateral Triangle

Length = n
Perimeter 63154671
Area 1.9189739564263E+14
Altitude 18231183.151216

Triangular Pyramid

Length = n
Surface area 1.9189739564263E+14
Volume 1.09947768358E+21
Height 9923799.1394901