72187929 is an odd 8-digits composite number following 72187928
and preceding 72187930 . In scientific notation, it is written as 7.2187929 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 43749720 positive integers (up to 72187929) that are relatively prime to 72187929.
72187929 has 16 divisors, whose sum is 110187200
The reverse of 72187929 is 92978127
Previous prime number is 33
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million one hundred eighty-seven thousand nine hundred twenty-nine
Scientific notation
7.2187929 × 10^7
Engineering notation
7.2187929 × 10^6
Prime Factorization
9 × 3 × 33 × 81019
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72187929
Product of the distinct prime numbers
The prime factorization of 72187929 is 9 × 3 × 33 × 81019.
Since it has a total of 4 prime factors.
8 , 6 , 34 , 16 , 536 , 150 , 7494 , 5059 , 41297 , 83317 , 785419 , 443128 , 5888476 , 9900980 , 33695885 , 27323026 , 210424305 , 462074656 , 4775538005 , 3474319514
n×2
144375858
n×3
216563787
n×4
288751716
n×5
360939645
n÷2
36093964.5
n÷3
24062643
n÷3
18046982.25
n÷5
14437585.8
n2
5211097093309041
n3
3.761783069839E+23
n4
2.7155532915894E+31
n5
1.9603016820897E+39
2 √n
8496.3479801618
3 √n
416.37840207223
4 √n
92.175636586692
5 √n
37.298633116348
1 , 3 , 9 , 27 , 33 , 99 , 297 , 891 , 81019 , 243057 , 729171 , 2187513 , 2673627 , 8020881 , 24062643 , 72187929
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
-72187928
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 72187929 can be divided by 16 positive divisors.
The sum of these divisors (counting 72187929) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011011000000000011001
3
Ternary
12000211112020000
4
Quaternary
10103120000121
5
Quinary
121440003204
6
Senary
11055123213
8
Octal
423300031
10
Decimal
72187929
12
Duodecimal
20213509
16
Hexadecimal
44d8019
20
Vigesimal
12b39g9
36
Base36
16z8k9
md5
e0b902111ecf6bcb0ebf1fc3b7a6ffe6
sha1
3634f384d66cf5e80806ca0d7c5b9299402c0ccc
sha256
1ab87877239a1c7d09d80c8028eae66a821a519267030a0d4008cebd86030da5
sha512
82b71c66892f47594740159c5fc891e660693e8296fe7cc42da9077f2beac28b465eb1bdedcf414b4a756ff0aa15c3d8cc1f1c0d2eb4d87b5689d1059f411801
ripemd-160
4b8ba09499bd165f94e72f728c16ba5a6acba1de
Diameter
144375858
Circumference
453570134.84852
Area
1.6371144345483E+16
Volume
1.5757320075473E+24
Surface area
6.5484577381931E+16
Circumference
453570134.84852
Perimeter
288751716
Area
5211097093309041
Diagonal
102089148.23143
Surface area
31266582559854246
Volume
3.761783069839E+23
Space diagonal
125033160.72117
Perimeter
216563787
Area
2.2564712321964E+15
Altitude
62516580.360587
Surface area
2.2564712321964E+15
Volume
4.4333038633932E+22
Height
34029716.077142