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.
189991 has 4 divisors, whose sum is 190912
The reverse of 189991 is 199981
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 37
Digital Root 1
Name
one hundred eighty-nine thousand nine hundred ninety-one
Scientific notation
1.89991 × 10^5
Engineering notation
1.89991 × 10^3
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.
4 , 3 , 29 , 5 , 614 , 771 , 5332 , 6382 , 72609 , 34275 , 843676 , 18947 , 3007325 , 6646049 , 27208426 , 23019033 , 646647722 , 733311185 , 2462877089 , 4037866457
n×2
379982
n×3
569973
n×4
759964
n×5
949955
n÷2
94995.5
n÷3
63330.333333333
n÷3
47497.75
n÷5
37998.2
n2
36096580081
n3
6858025346169271
n4
1.302963093544E+21
n5
2.4755126110553E+26
2 √n
435.87957052379
3 √n
57.488063054524
4 √n
20.877729055714
5 √n
11.369637172688
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
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
md5
a36148da1fd702cff55700ebf16f443b
sha1
ee0d9eab3ac9d0b109d3d9f48ee32eb62edd20f1
sha256
9d2189f9066a6158366c9b79ae2fe336c5bf0948cc5305e0e31565c0d3fe7560
sha512
5154ad63e62980756d566578661e3f8f58696693600e4d607483ee46573c133403ad1ef28bfdbcfdbfdedce186f6d44559852ef6692ab931d5f2ed3bfbb72519
ripemd-160
95656e4c5c6a043f60937347c57176c2d19cf3b5
Diameter
379982
Circumference
1193748.6596964
Area
113400750802.19
Volume
2.8726829394211E+16
Surface area
453603003208.74
Circumference
1193748.6596964
Perimeter
759964
Area
36096580081
Diagonal
268687.84892883
Surface area
216579480486
Volume
6858025346169271
Space diagonal
329074.06498082
Perimeter
569973
Area
15630277669.943
Altitude
164537.03249041
Surface area
15630277669.943
Volume
8.0822603797092E+14
Height
89562.616309609