221661 (number)

221661 is an odd 6-digits composite number following 221660 and preceding 221662. In scientific notation, it is written as 2.21661 × 10^5. The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors. There are 134280 positive integers (up to 221661) that are relatively prime to 221661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.21661 × 10^5
Engineering notation 2.21661 × 10^3

Prime Factorization of 221661

Prime Factorization 3 × 3 × 11 × 2239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 73887
Product of the distinct prime numbers

The prime factorization of 221661 is 3 × 3 × 11 × 2239. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 75, 52, 618, 607, 8571, 6526, 30128, 92731, 405429, 882231, 4550380, 2182508, 23260017, 93267563, 415240321, 888758353, 6422308857, 8301745240

Basic calculations (n = 221661)

Multiplication

n×y
n×2 443322
n×3 664983
n×4 886644
n×5 1108305

Division

n÷y
n÷2 110830.5
n÷3 73887
n÷3 55415.25
n÷5 44332.2

Exponentiation

ny
n2 49133598921
n3 10891002670427781
n4 2.4141105429297E+21
n5 5.3511415705634E+26

Nth Root

y√n
2√n 470.80887842096
3√n 60.519653019114
4√n 21.698130758684
5√n 11.72567513338

Divisors of 221661

1, 3, 9, 11, 33, 99, 2239, 6717, 20151, 24629, 73887, 221661

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -221660
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221661 can be divided by 12 positive divisors. The sum of these divisors (counting 221661) is 1, the average is 0.083333333333333.

Base conversion 221661

Base System Value
2 Binary 110110000111011101
3 Ternary 102021001200
4 Quaternary 312013131
5 Quinary 24043121
6 Senary 4430113
8 Octal 660735
10 Decimal 221661
12 Duodecimal a8339
16 Hexadecimal 361dd
20 Vigesimal 17e31
36 Base36 4r19

Cryptographic Hash Functions

md5 b4c97b5c85332447513b7040edb82c82
sha1 476e111c8e838cbced454f76ac9968730f13e5a1
sha256 d2e2b7137e320781bc5801c9cc1fa500c03832c537215fdc1376d9e0cddcdf46
sha512 edd4d0c385d2b5ca3fdeec395385171ad1e07946ea4eebe7dbe91ed52bb9b185775c4c8fd4d01fc242834445154657eaf8d306506b8ac17f86f2ad9e515cae9d
ripemd-160 924d5b0ca323d84c519c87c968045b3fb6a631c6

221661 as geometric shapes

Circle

Radius = n
Diameter 443322
Circumference 1392737.1383747
Area 154357753414.64

Sphere

Radius = n
Volume 4.562012530619E+16
Surface area 617431013658.56
Circumference 1392737.1383747

Square

Length = n
Perimeter 886644
Area 49133598921
Diagonal 313475.99244918

Cube

Length = n
Surface area 294801593526
Volume 10891002670427781
Space diagonal 383928.11405652

Equilateral Triangle

Length = n
Perimeter 664983
Area 21275472422.471
Altitude 191964.05702826

Triangular Pyramid

Length = n
Surface area 21275472422.471
Volume 1.2835169736967E+15
Height 104491.99748306