21051565 (number)

21051565 is an odd 8-digits composite number following 21051564 and preceding 21051566. In scientific notation, it is written as 2.1051565 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 16802880 positive integers (up to 21051565) that are relatively prime to 21051565.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1051565 × 10^7
Engineering notation 2.1051565 × 10^6

Prime Factorization of 21051565

Prime Factorization 5 × 461 × 9133

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21051565
Product of the distinct prime numbers

The prime factorization of 21051565 is 5 × 461 × 9133. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21051565)

Multiplication

n×y
n×2 42103130
n×3 63154695
n×4 84206260
n×5 105257825

Division

n÷y
n÷2 10525782.5
n÷3 7017188.3333333
n÷3 5262891.25
n÷5 4210313

Exponentiation

ny
n2 443168388949225
n3 9.3293881459099E+21
n4 1.9639822096385E+29
n5 4.1344899145049E+36

Nth Root

y√n
2√n 4588.1984481929
3√n 276.11804881565
4√n 67.736241763128
5√n 29.151229562087

Divisors of 21051565

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 -21051564
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 21051565 can be divided by 8 positive divisors. The sum of these divisors (counting 21051565) is 1, the average is 0.125.

Base conversion 21051565

Base System Value
2 Binary 1010000010011100010101101
3 Ternary 1110121112022121
4 Quaternary 1100103202231
5 Quinary 20342122230
6 Senary 2031112541
8 Octal 120234255
10 Decimal 21051565
12 Duodecimal 7072751
16 Hexadecimal 14138ad
20 Vigesimal 6bb8i5
36 Base36 cj7hp

Cryptographic Hash Functions

md5 bbafa4dc6f62a401cd20583286296daa
sha1 50de612d0b1b41bb5c9aa77ccc5576445034b522
sha256 e5aba30b429408ccf5a4adf17a85e9a136a8b0f07876198112f03d968e468c3f
sha512 aeffb29d599a88365bc2adc5c6903e4919ad40d9b3d500fd2f1af6061e0c87f82f59f15cb5c80fa8cd6baa4fc0b7f94055406884faa900338cc2a2f607279c00
ripemd-160 42972501c252205725df630dbbf40ad0ea196bac

21051565 as geometric shapes

Circle

Radius = n
Diameter 42103130
Circumference 132270883.90114
Area 1.3922545550261E+15

Sphere

Radius = n
Volume 3.9078849682238E+22
Surface area 5.5690182201044E+15
Circumference 132270883.90114

Square

Length = n
Perimeter 84206260
Area 443168388949225
Diagonal 29771408.732179

Cube

Length = n
Surface area 2659010333695350
Volume 9.3293881459099E+21
Space diagonal 36462380.158839

Equilateral Triangle

Length = n
Perimeter 63154695
Area 1.9189754149213E+14
Altitude 18231190.079419

Triangular Pyramid

Length = n
Surface area 1.9189754149213E+14
Volume 1.099478937049E+21
Height 9923802.9107263