221561 (number)

221561 is an odd 6-digits composite number following 221560 and preceding 221562. In scientific notation, it is written as 2.21561 × 10^5. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 208512 positive integers (up to 221561) that are relatively prime to 221561.

Interesting facts

Basic properties

Name

Name two hundred twenty-one thousand five hundred sixty-one

Notation

Scientific notation 2.21561 × 10^5
Engineering notation 2.21561 × 10^3

Prime Factorization of 221561

Prime Factorization 17 × 13033

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 221561
Product of the distinct prime numbers

The prime factorization of 221561 is 17 × 13033. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 221561)

Multiplication

n×y
n×2 443122
n×3 664683
n×4 886244
n×5 1107805

Division

n÷y
n÷2 110780.5
n÷3 73853.666666667
n÷3 55390.25
n÷5 44312.2

Exponentiation

ny
n2 49089276721
n3 10876269239581481
n4 2.4097570889909E+21
n5 5.3390819039392E+26

Nth Root

y√n
2√n 470.70266623422
3√n 60.510550717817
4√n 21.695683124396
5√n 11.724616959711

Divisors of 221561

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 -221560
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 221561 can be divided by 4 positive divisors. The sum of these divisors (counting 221561) is 1, the average is 0.25.

Base conversion 221561

Base System Value
2 Binary 110110000101111001
3 Ternary 102020220222
4 Quaternary 312011321
5 Quinary 24042221
6 Senary 4425425
8 Octal 660571
10 Decimal 221561
12 Duodecimal a8275
16 Hexadecimal 36179
20 Vigesimal 17di1
36 Base36 4qyh

Cryptographic Hash Functions

md5 d916e815bc0b73627bead04d20cb7943
sha1 9961f440732d6256ffb4844a2319a8cb5da69076
sha256 fe602ed728dd3724968d70898bff8ca2c7159b44d4760b9d71f24c545d89b395
sha512 b734a157c70c6ec4ec4d20c0b2081c4c23f5bf29368c41ee4e890daf7a3624dd36bde0a15618f40c4b11634915cba933458d575d7cbee485088d76f2c00f9e0c
ripemd-160 3621ffc4a12bec8f6643935e44f65455f4d0050f

221561 as geometric shapes

Circle

Radius = n
Diameter 443122
Circumference 1392108.819844
Area 154218511116.73

Sphere

Radius = n
Volume 4.5558410055378E+16
Surface area 616874044466.92
Circumference 1392108.819844

Square

Length = n
Perimeter 886244
Area 49089276721
Diagonal 313334.57109295

Cube

Length = n
Surface area 294535660326
Volume 10876269239581481
Space diagonal 383754.90897577

Equilateral Triangle

Length = n
Perimeter 664683
Area 21256280346.895
Altitude 191877.45448788

Triangular Pyramid

Length = n
Surface area 21256280346.895
Volume 1.2817806222198E+15
Height 104444.85703098