72189891 is an odd 8-digits composite number following 72189890
and preceding 72189892 . In scientific notation, it is written as 7.2189891 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors.
There are 48126588 positive integers (up to 72189891) that are relatively prime to 72189891.
72189891 has 6 divisors, whose sum is 104274300
The reverse of 72189891 is 19898127
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million one hundred eighty-nine thousand eight hundred ninety-one
Scientific notation
7.2189891 × 10^7
Engineering notation
7.2189891 × 10^6
Prime Factorization
3 × 3 × 8021099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
24063297
Product of the distinct prime numbers
The prime factorization of 72189891 is 3 × 3 × 8021099.
Since it has a total of 3 prime factors.
10 , 9 , 5 , 21 , 581 , 255 , 3509 , 4806 , 54380 , 85712 , 231984 , 120359 , 5770723 , 6492181 , 96878160 , 73962070 , 882578324 , 895187791 , 2097711351 , 2722131766
n×2
144379782
n×3
216569673
n×4
288759564
n×5
360949455
n÷2
36094945.5
n÷3
24063297
n÷3
18047472.75
n÷5
14437978.2
n2
5211380362591881
n3
3.7620898033505E+23
n4
2.7158485283608E+31
n5
1.9605680923488E+39
2 √n
8496.4634407499
3 √n
416.38217429581
4 √n
92.17626289208
5 √n
37.298835862495
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72189890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72189891 can be divided by 6 positive divisors.
The sum of these divisors (counting 72189891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100010011011000011111000011
3
Ternary
12000211121220200
4
Quaternary
10103120133003
5
Quinary
121440034031
6
Senary
11055140243
8
Octal
423303703
10
Decimal
72189891
12
Duodecimal
20214683
16
Hexadecimal
44d87c3
20
Vigesimal
12b3eeb
36
Base36
16za2r
md5
0a34a02e007a0280ba030855f545c28c
sha1
040a67dee56c17381595e5996ed27dff03911e4c
sha256
9e96c33097340a6d381eb40ca2da2f7ec09d8059391bad0b055c754b144a692c
sha512
e1178f5509683774bddeb45be1b10bd4670739a49752984c39838d3947b8a7cf0e3200a7bd17e70d9b5e95cc4a525b52f3360c3eeb0c51f480d3d775b8967453
ripemd-160
c9f6ad4e35c4eafd13f76b7318f7e1b492f2adf1
Diameter
144379782
Circumference
453582462.4581
Area
1.6372034262181E+16
Volume
1.5758604917801E+24
Surface area
6.5488137048723E+16
Circumference
453582462.4581
Perimeter
288759564
Area
5211380362591881
Diagonal
102091922.91844
Surface area
31268282175551286
Volume
3.7620898033505E+23
Space diagonal
125036559.00486
Perimeter
216569673
Area
2.256593891394E+15
Altitude
62518279.50243
Surface area
2.256593891394E+15
Volume
4.4336653523032E+22
Height
34030640.972812