72161730 is an even 8-digits composite number following 72161729
and preceding 72161731 . In scientific notation, it is written as 7.2161730 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 19121184 positive integers (up to 72161730) that are relatively prime to 72161730.
72161730 has 16 divisors, whose sum is 111349440
The reverse of 72161730 is 03716127
Previous prime number is 163
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
seventy-two million one hundred sixty-one thousand seven hundred thirty
Scientific notation
7.2161730 × 10^7
Engineering notation
7.2161730 × 10^6
Prime Factorization
2 × 45 × 163 × 4919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72161730
Product of the distinct prime numbers
The prime factorization of 72161730 is 2 × 45 × 163 × 4919.
Since it has a total of 4 prime factors.
3 , 5 , 74 , 91 , 706 , 67 , 7708 , 8980 , 60451 , 46952 , 739105 , 8752 , 8992036 , 2060920 , 41086202 , 5158192 , 600491692 , 554786639 , 8935277300 , 7311593175
n×2
144323460
n×3
216485190
n×4
288646920
n×5
360808650
n÷2
36080865
n÷3
24053910
n÷3
18040432.5
n÷5
14432346
n2
5207315276592900
n3
3.7576887901437E+23
n4
2.7116132389838E+31
n5
1.9567470241597E+39
2 √n
8494.8060601758
3 √n
416.32802422345
4 √n
92.167272174974
5 √n
37.295925381709
1 , 2 , 45 , 90 , 163 , 326 , 4919 , 7335 , 9838 , 14670 , 221355 , 442710 , 801797 , 1603594 , 36080865 , 72161730
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72161729
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72161730 can be divided by 16 positive divisors.
The sum of these divisors (counting 72161730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010001100111000010
3
Ternary
12000210012021200
4
Quaternary
10103101213002
5
Quinary
121433133410
6
Senary
11054402030
8
Octal
423214702
10
Decimal
72161730
12
Duodecimal
20200316
16
Hexadecimal
44d19c2
20
Vigesimal
12b046a
36
Base36
16yoci
md5
d21b68d121f2b172293ca6ab545a57c7
sha1
c10c1d66381a44c099cae89ac7b17fe656992312
sha256
a422e1f27ae05c758921a4460a03469befaa31ce87f9bcf7933ac86b248fbe34
sha512
9b9b306857ab17e820ab0cde7ea424ac57f97476c5e247478269641c4ca19a05415c360623c7e68cf59f6609966a7818ebf1314588901d04a93fc0b85b1f399b
ripemd-160
194a8f2046eef47cccc46b84d0f3dce8c53c5699
Diameter
144323460
Circumference
453405521.67666
Area
1.635926341787E+16
Volume
1.574016999679E+24
Surface area
6.5437053671481E+16
Circumference
453405521.67666
Perimeter
288646920
Area
5207315276592900
Diagonal
102052097.25031
Surface area
31243891659557400
Volume
3.7576887901437E+23
Space diagonal
124987782.72207
Perimeter
216485190
Area
2.2548336575221E+15
Altitude
62493891.361034
Surface area
2.2548336575221E+15
Volume
4.4284787084988E+22
Height
34017365.750102