21557065 (number)

21557065 is an odd 8-digits composite number following 21557064 and preceding 21557066. In scientific notation, it is written as 2.1557065 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 17245648 positive integers (up to 21557065) that are relatively prime to 21557065.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1557065 × 10^7
Engineering notation 2.1557065 × 10^6

Prime Factorization of 21557065

Prime Factorization 5 × 4311413

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21557065
Product of the distinct prime numbers

The prime factorization of 21557065 is 5 × 4311413. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21557065)

Multiplication

n×y
n×2 43114130
n×3 64671195
n×4 86228260
n×5 107785325

Division

n÷y
n÷2 10778532.5
n÷3 7185688.3333333
n÷3 5389266.25
n÷5 4311413

Exponentiation

ny
n2 464707051414225
n3 1.0017720113295E+22
n4 2.159526436341E+29
n5 4.6553051757422E+36

Nth Root

y√n
2√n 4642.9586472421
3√n 278.31068297479
4√n 68.139259221407
5√n 29.289902516099

Divisors of 21557065

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21557064
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21557065 can be divided by 4 positive divisors. The sum of these divisors (counting 21557065) is 1, the average is 0.25.

Base conversion 21557065

Base System Value
2 Binary 1010010001110111101001001
3 Ternary 1111120012201211
4 Quaternary 1102032331021
5 Quinary 21004311230
6 Senary 2050013121
8 Octal 122167511
10 Decimal 21557065
12 Duodecimal 72771a1
16 Hexadecimal 148ef49
20 Vigesimal 6eecd5
36 Base36 cu1jd

Cryptographic Hash Functions

md5 0f61e51b161996116c1d42a074f45a6a
sha1 79850db3d8d932b16d54dc531ef3180fc09b591b
sha256 316559a510ac14660689d3420865b2213b610aec33f2a1ea44d34d100451458c
sha512 cfdcc9247497b42a612eddef0fb31c9fc1000169b24886ef07509d31ef151ed31d50b0dee5ba6d9d945f6b3523da2c8ab0e78ad1c4638638901d2e2c045c5608
ripemd-160 7ec8e1223483ad3fe698c173fdab135865ebf027

21557065 as geometric shapes

Circle

Radius = n
Diameter 43114130
Circumference 135447034.07392
Area 1.4599202587943E+15

Sphere

Radius = n
Volume 4.1962127884861E+22
Surface area 5.8396810351772E+15
Circumference 135447034.07392

Square

Length = n
Perimeter 86228260
Area 464707051414225
Diagonal 30486293.687958

Cube

Length = n
Surface area 2788242308485350
Volume 1.0017720113295E+22
Space diagonal 37337931.842065

Equilateral Triangle

Length = n
Perimeter 64671195
Area 2.0122405592124E+14
Altitude 18668965.921032

Triangular Pyramid

Length = n
Surface area 2.0122405592124E+14
Volume 1.1805996373566E+21
Height 10162097.895986