72181641 is an odd 8-digits composite number following 72181640
and preceding 72181642 . In scientific notation, it is written as 7.2181641 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 41246640 positive integers (up to 72181641) that are relatively prime to 72181641.
72181641 has 8 divisors, whose sum is 109991104
The reverse of 72181641 is 14618127
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-two million one hundred eighty-one thousand six hundred forty-one
Scientific notation
7.2181641 × 10^7
Engineering notation
7.2181641 × 10^6
Prime Factorization
3 × 7 × 3437221
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181641
Product of the distinct prime numbers
The prime factorization of 72181641 is 3 × 7 × 3437221.
Since it has a total of 3 prime factors.
5 , 4 , 24 , 11 , 467 , 762 , 3672 , 6915 , 42064 , 68807 , 414853 , 462594 , 9124816 , 9140078 , 6946315 , 1931433 , 101124105 , 370583464 , 7276404482 , 2398797641
n×2
144363282
n×3
216544923
n×4
288726564
n×5
360908205
n÷2
36090820.5
n÷3
24060547
n÷3
18045410.25
n÷5
14436328.2
n2
5210189297452881
n3
3.7608001341079E+23
n4
2.7146072515293E+31
n5
1.9594480608588E+39
2 √n
8495.9779307623
3 √n
416.36631203884
4 √n
92.173629258928
5 √n
37.297983306939
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
-72181640
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 72181641 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181641) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110011110001001
3
Ternary
12000211012121010
4
Quaternary
10103112132021
5
Quinary
121434303031
6
Senary
11055034133
8
Octal
423263611
10
Decimal
72181641
12
Duodecimal
2020b949
16
Hexadecimal
44d6789
20
Vigesimal
12b2e21
36
Base36
16z3pl
md5
feff91d6e25583851bff10996d819cac
sha1
29fb5cebe469d8e2a65ac4ff57d72642a53fc2ec
sha256
cabe353827a8219d7e164004672aacd7d13b8d7caa5dcec3f9d4e2333537673f
sha512
b9590a1ebe013b20ae8156d12ffd69bcc065c334df4999c6d2876b632e23f170480243fbb183f90cfc881c35e8946dd941a6a12819552be3f6ade849cab89ac3
ripemd-160
d1980ff894e9fc49949e7848a67920ad3690f4f5
Diameter
144363282
Circumference
453530626.17931
Area
1.636829242069E+16
Volume
1.575320276391E+24
Surface area
6.5473169682761E+16
Circumference
453530626.17931
Perimeter
288726564
Area
5210189297452881
Diagonal
102080255.65655
Surface area
31261135784717286
Volume
3.7608001341079E+23
Space diagonal
125022269.5857
Perimeter
216544923
Area
2.25607814506E+15
Altitude
62511134.792848
Surface area
2.25607814506E+15
Volume
4.4321454625249E+22
Height
34026751.885515