189156721 is an odd 9-digits composite number following 189156720
and preceding 189156722 . In scientific notation, it is written as 1.89156721 × 10^8.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 173229840 positive integers (up to 189156721) that are relatively prime to 189156721.
189156721 has 8 divisors, whose sum is 205313024
The reverse of 189156721 is 127651981
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred eighty-nine million one hundred fifty-six thousand seven hundred twenty-one
Scientific notation
1.89156721 × 10^8
Engineering notation
1.89156721 × 10^6
Prime Factorization
13 × 127 × 114571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
189156721
Product of the distinct prime numbers
The prime factorization of 189156721 is 13 × 127 × 114571.
Since it has a total of 3 prime factors.
5 , 5 , 25 , 13 , 562 , 896 , 63 , 7603 , 52508 , 78155 , 188480 , 945044 , 5175923 , 4946767 , 20281589 , 41890716 , 828733081 , 45137357 , 9659651291 , 957301048
n×2
378313442
n×3
567470163
n×4
756626884
n×5
945783605
n÷2
94578360.5
n÷3
63052240.333333
n÷3
47289180.25
n÷5
37831344.2
n2
35780265099471841
n3
6.7680776227268E+24
n4
1.2802273705885E+33
n5
2.4216361155497E+41
2 √n
13753.425791416
3 √n
574.0379334884
4 √n
117.27500070951
5 √n
45.223519218914
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-189156720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 189156721 can be divided by 8 positive divisors.
The sum of these divisors (counting 189156721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011010001100100110101110001
3
Ternary
111011221011020111
4
Quaternary
23101210311301
5
Quinary
341411003341
6
Senary
30434141321
8
Octal
1321446561
10
Decimal
189156721
12
Duodecimal
53421841
16
Hexadecimal
b464d71
20
Vigesimal
2j24bg1
36
Base36
34ma9d
md5
90b4af8bfed35ec5ad8dac028242a43a
sha1
ed2151358963825a18ec6402cf5a90b9fb4f1654
sha256
36accd72942f6712bff50895b5de0439792a1b3c2050af007a590ba712eb8a66
sha512
88d0f63e782814c19ca9c5ddaebc84f1cd980569f8f15f4ead99ca7b66bae0d6afc595dcebd99581d0318ab589d2d49438a29da635a97c606be19121b29d3ee2
ripemd-160
9e15931cfe0a793d11fad0e3d4e0855aaa9f2f4e
Diameter
378313442
Circumference
1188506730.1415
Area
1.1240701798E+17
Volume
2.8350057251312E+25
Surface area
4.4962807191998E+17
Circumference
1188506730.1415
Perimeter
756626884
Area
35780265099471841
Diagonal
267508000.25222
Surface area
214681590596831046
Volume
6.7680776227268E+24
Space diagonal
327629051.36513
Perimeter
567470163
Area
1.5493309265142E+16
Altitude
163814525.68257
Surface area
1.5493309265142E+16
Volume
7.9762559710451E+23
Height
89169333.417408