72181889 is an odd 8-digits composite number following 72181888
and preceding 72181890 . In scientific notation, it is written as 7.2181889 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 62840448 positive integers (up to 72181889) that are relatively prime to 72181889.
72181889 has 8 divisors, whose sum is 73437600
The reverse of 72181889 is 98818127
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
seventy-two million one hundred eighty-one thousand eight hundred eighty-nine
Scientific notation
7.2181889 × 10^7
Engineering notation
7.2181889 × 10^6
Prime Factorization
299 × 73 × 3307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181889
Product of the distinct prime numbers
The prime factorization of 72181889 is 299 × 73 × 3307.
Since it has a total of 3 prime factors.
7 , 1 , 94 , 55 , 329 , 778 , 5587 , 4633 , 41078 , 24373 , 837344 , 652997 , 6575390 , 3527831 , 41881630 , 116467 , 825944593 , 361345154 , 7577864666 , 3977802851
n×2
144363778
n×3
216545667
n×4
288727556
n×5
360909445
n÷2
36090944.5
n÷3
24060629.666667
n÷3
18045472.25
n÷5
14436377.8
n2
5210225099608321
n3
3.7608388980494E+23
n4
2.7146445588589E+31
n5
1.95948172222E+39
2 √n
8495.9925258913
3 √n
416.36678888551
4 √n
92.173708430828
5 √n
37.298008936412
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
-72181888
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 72181889 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181889) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110100010000001
3
Ternary
12000211012221022
4
Quaternary
10103112202001
5
Quinary
121434310024
6
Senary
11055035225
8
Octal
423264201
10
Decimal
72181889
12
Duodecimal
2020bb15
16
Hexadecimal
44d6881
20
Vigesimal
12b2ee9
36
Base36
16z3wh
md5
85f9d4f1025d535a80616990e65fdf85
sha1
ce8ad8a2ee7a4ee8756d8c249f93e65ad5bcb0a0
sha256
b1a5eec86520e63ed9afa49f58ac31757ebec66bfb614d42f9491ca45c3340d6
sha512
2f2d57f9f8e6f53ae114f4fb7ad22c5df894061498d2d2d7b5c7e3283a55f4fd3b1872800ddd2a73d507cc4c16844b45ebf5d78270c847c61dc41bbabd10ffd8
ripemd-160
717be7cf6ecdc478f79c4cb9f394e33069270ab8
Diameter
144363778
Circumference
453532184.40927
Area
1.6368404896479E+16
Volume
1.5753365137929E+24
Surface area
6.5473619585915E+16
Circumference
453532184.40927
Perimeter
288727556
Area
5210225099608321
Diagonal
102080606.38151
Surface area
31261350597649926
Volume
3.7608388980494E+23
Space diagonal
125022699.1343
Perimeter
216545667
Area
2.2560936478481E+15
Altitude
62511349.567149
Surface area
2.2560936478481E+15
Volume
4.4321911462681E+22
Height
34026868.793836