189991 (number)

189991 is an odd 6-digits composite number following 189990 and preceding 189992. In scientific notation, it is written as 1.89991 × 10^5. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 189072 positive integers (up to 189991) that are relatively prime to 189991.

Interesting facts

Basic properties

Name

Name one hundred eighty-nine thousand nine hundred ninety-one

Notation

Scientific notation 1.89991 × 10^5
Engineering notation 1.89991 × 10^3

Prime Factorization of 189991

Prime Factorization 313 × 607

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 189991
Product of the distinct prime numbers

The prime factorization of 189991 is 313 × 607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 189991)

Multiplication

n×y
n×2 379982
n×3 569973
n×4 759964
n×5 949955

Division

n÷y
n÷2 94995.5
n÷3 63330.333333333
n÷3 47497.75
n÷5 37998.2

Exponentiation

ny
n2 36096580081
n3 6858025346169271
n4 1.302963093544E+21
n5 2.4755126110553E+26

Nth Root

y√n
2√n 435.87957052379
3√n 57.488063054524
4√n 20.877729055714
5√n 11.369637172688

Divisors of 189991

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 -189990
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 189991 can be divided by 4 positive divisors. The sum of these divisors (counting 189991) is 1, the average is 0.25.

Base conversion 189991

Base System Value
2 Binary 101110011000100111
3 Ternary 100122121201
4 Quaternary 232120213
5 Quinary 22034431
6 Senary 4023331
8 Octal 563047
10 Decimal 189991
12 Duodecimal 91b47
16 Hexadecimal 2e627
20 Vigesimal 13ejb
36 Base36 42lj

Cryptographic Hash Functions

md5 a36148da1fd702cff55700ebf16f443b
sha1 ee0d9eab3ac9d0b109d3d9f48ee32eb62edd20f1
sha256 9d2189f9066a6158366c9b79ae2fe336c5bf0948cc5305e0e31565c0d3fe7560
sha512 5154ad63e62980756d566578661e3f8f58696693600e4d607483ee46573c133403ad1ef28bfdbcfdbfdedce186f6d44559852ef6692ab931d5f2ed3bfbb72519
ripemd-160 95656e4c5c6a043f60937347c57176c2d19cf3b5

189991 as geometric shapes

Circle

Radius = n
Diameter 379982
Circumference 1193748.6596964
Area 113400750802.19

Sphere

Radius = n
Volume 2.8726829394211E+16
Surface area 453603003208.74
Circumference 1193748.6596964

Square

Length = n
Perimeter 759964
Area 36096580081
Diagonal 268687.84892883

Cube

Length = n
Surface area 216579480486
Volume 6858025346169271
Space diagonal 329074.06498082

Equilateral Triangle

Length = n
Perimeter 569973
Area 15630277669.943
Altitude 164537.03249041

Triangular Pyramid

Length = n
Surface area 15630277669.943
Volume 8.0822603797092E+14
Height 89562.616309609