72181886 is an even 8-digits composite number following 72181885
and preceding 72181887 . In scientific notation, it is written as 7.2181886 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 30935088 positive integers (up to 72181886) that are relatively prime to 72181886.
72181886 has 8 divisors, whose sum is 123740400
The reverse of 72181886 is 68818127
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-two million one hundred eighty-one thousand eight hundred eighty-six
Scientific notation
7.2181886 × 10^7
Engineering notation
7.2181886 × 10^6
Prime Factorization
2 × 7 × 5155849
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181886
Product of the distinct prime numbers
The prime factorization of 72181886 is 2 × 7 × 5155849.
Since it has a total of 3 prime factors.
7 , 4 , 22 , 75 , 616 , 798 , 4461 , 139 , 58920 , 35868 , 783747 , 551256 , 7022295 , 6314102 , 67730456 , 86599974 , 66583061 , 595533058 , 783344948 , 7609511766
n×2
144363772
n×3
216545658
n×4
288727544
n×5
360909430
n÷2
36090943
n÷3
24060628.666667
n÷3
18045471.5
n÷5
14436377.2
n2
5210224666516996
n3
3.7608384291292E+23
n4
2.7146441075582E+31
n5
1.9594813150234E+39
2 √n
8495.9923493374
3 √n
416.36678311721
4 √n
92.173707473104
5 √n
37.298008626379
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
-72181885
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 72181886 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181886) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110100001111110
3
Ternary
12000211012221012
4
Quaternary
10103112201332
5
Quinary
121434310021
6
Senary
11055035222
8
Octal
423264176
10
Decimal
72181886
12
Duodecimal
2020bb12
16
Hexadecimal
44d687e
20
Vigesimal
12b2ee6
36
Base36
16z3we
md5
d4ba59d080f95466763e2443aaf4af15
sha1
69ec887374c7747ec968cd0674492f0d115e83b1
sha256
1d069abce7e91634a104c587dd81376349e3f0b372186038556b1bc46d815362
sha512
6624315c94c3071ce829d28bbf1aa087c2ed9143b15b56ce8afbfeeccf175f67ec41731011a78692b129ab33bc39715f619ecba3c026632650a4781423b09712
ripemd-160
d6da8db6e177bf9d7cd7dbf67806de96ac636180
Diameter
144363772
Circumference
453532165.55971
Area
1.6368403535882E+16
Volume
1.5753363173721E+24
Surface area
6.5473614143528E+16
Circumference
453532165.55971
Perimeter
288727544
Area
5210224666516996
Diagonal
102080602.13887
Surface area
31261347999101976
Volume
3.7608384291292E+23
Space diagonal
125022693.93814
Perimeter
216545658
Area
2.256093460314E+15
Altitude
62511346.969072
Surface area
2.256093460314E+15
Volume
4.4321905936403E+22
Height
34026867.379623