72181830 is an even 8-digits composite number following 72181829
and preceding 72181831 . In scientific notation, it is written as 7.2181830 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 15527424 positive integers (up to 72181830) that are relatively prime to 72181830.
72181830 has 32 divisors, whose sum is 139760640
The reverse of 72181830 is 03818127
Previous prime number is 17
Is Prime? no Number parity even Number length 8 Sum of Digits 30 Digital Root 3
Name
seventy-two million one hundred eighty-one thousand eight hundred thirty
Scientific notation
7.2181830 × 10^7
Engineering notation
7.2181830 × 10^6
Prime Factorization
2 × 7 × 15 × 17 × 20219
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
72181830 Product of the distinct prime numbers
The prime factorization of 72181830 is 2 × 7 × 15 × 17 × 20219.
Since it has a total of 5 prime factors.
7 , 7 , 4 , 27 , 701 , 43 , 1077 , 2675 , 29196 , 8052 , 415238 , 923680 , 2978741 , 3660816 , 40859903 , 44232124 , 861637489 , 20852265 , 3590707995 , 8983014950
n×2
144363660
n×3
216545490
n×4
288727320
n×5
360909150
n÷2
36090915
n÷3
24060610
n÷3
18045457.5
n÷5
14436366
n2
5210216582148900
n3
3.7608296759585E+23
n4
2.7146356832899E+31
n5
1.9594737140317E+39
2 √n8495.9890536653
3 √n416.36667544225
4 √n92.173689595596
5 √n37.298002839084
1 , 2 , 7 , 14 , 15 , 17 , 30 , 34 , 105 , 119 , 210 , 238 , 255 , 510 , 1785 , 3570 , 20219 , 40438 , 141533 , 283066 , 303285 , 343723 , 606570 , 687446 , 2122995 , 2406061 , 4245990 , 4812122 , 5155845 , 10311690 , 36090915 , 72181830
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-72181829 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72181830 can be divided by 32 positive divisors.
The sum of these divisors (counting 72181830) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010011010110100001000110
3
Ternary
12000211012212010
4
Quaternary
10103112201012
5
Quinary
121434304310
6
Senary
11055035050
8
Octal
423264106
10
Decimal
72181830
12
Duodecimal
2020ba86
16
Hexadecimal
44d6846
20
Vigesimal
12b2eba
36
Base36
16z3uu
md5
052172944883fbc042f629748d39eac4
sha1
afbb0a74ee210d5f0063f6430be417a09a4e4a7a
sha256
9dfb7669fe29b2efcbad6957712ca1f7e3e9cb984848c7af2a56e73e013b8b75
sha512
9ae50e0a717c77b0ffc92d20d5020d46aad29585f46c421bbf35f9defe2ec2dbdb546d8d20a4db958f3cd3295d6204fff6e05809d6b2aac84e5d5d81cfa905a3
ripemd-160
f42dcf6454a5f2d0319a976d39b62af91a12262a
Diameter
144363660
Circumference
453531813.70133
Area
1.6368378138091E+16
Volume
1.5753326508525E+24
Surface area
6.5473512552363E+16
Circumference
453531813.70133
Perimeter
288727320
Area
5210216582148900
Diagonal
102080522.94291
Surface area
31261299492893400
Volume
3.7608296759585E+23
Space diagonal
125022596.9433
Perimeter
216545490
Area
2.2560899596799E+15
Altitude
62511298.47165
Surface area
2.2560899596799E+15
Volume
4.4321802779298E+22
Height
34026840.98097