72185438 is an even 8-digits composite number following 72185437
and preceding 72185439 . In scientific notation, it is written as 7.2185438 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 32750976 positive integers (up to 72185438) that are relatively prime to 72185438.
72185438 has 16 divisors, whose sum is 118586160
The reverse of 72185438 is 83458127
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million one hundred eighty-five thousand four hundred thirty-eight
Scientific notation
7.2185438 × 10^7
Engineering notation
7.2185438 × 10^6
Prime Factorization
2 × 13 × 59 × 47057
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72185438
Product of the distinct prime numbers
The prime factorization of 72185438 is 2 × 13 × 59 × 47057.
Since it has a total of 4 prime factors.
6 , 10 , 47 , 79 , 997 , 412 , 3063 , 5015 , 80944 , 77432 , 877010 , 881883 , 9615163 , 988391 , 72982914 , 78888374 , 258250363 , 748961329 , 2216067294 , 4072190924
n×2
144370876
n×3
216556314
n×4
288741752
n×5
360927190
n÷2
36092719
n÷3
24061812.666667
n÷3
18046359.5
n÷5
14437087.6
n2
5210737459251844
n3
3.761393657991E+23
n4
2.715178486925E+31
n5
1.9599634832686E+39
2 √n
8496.2013865021
3 √n
416.37361267256
4 √n
92.174841396674
5 √n
37.298375698857
1 , 2 , 13 , 26 , 59 , 118 , 767 , 1534 , 47057 , 94114 , 611741 , 1223482 , 2776363 , 5552726 , 36092719 , 72185438
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
-72185437
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 72185438 can be divided by 16 positive divisors.
The sum of these divisors (counting 72185438) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010111011001011110
3
Ternary
12000211101210202
4
Quaternary
10103113121132
5
Quinary
121434413223
6
Senary
11055103502
8
Octal
423273136
10
Decimal
72185438
12
Duodecimal
20211b92
16
Hexadecimal
44d765e
20
Vigesimal
12b33bi
36
Base36
16z6n2
md5
db975ffece89916a0900dd6346d0e028
sha1
5b5f21cc97b7378ae4ffc960e4b9e3367b6ef225
sha256
093228936daebdb4f16f47acba0e9a28ebb4dfd21ee03759d4dab239760a433b
sha512
8d77e5bd1b74ad018e0bda63f1fe5d92c37c701fff13fa779fc2c57c952904fa5f73ce4fa17a27a08326a1173486de738db255760ba7209cd1234c35c932177b
ripemd-160
e678999227152339552d1a556e222d5cd6310c55
Diameter
144370876
Circumference
453554483.43392
Area
1.6370014521771E+16
Volume
1.5755688910938E+24
Surface area
6.5480058087083E+16
Circumference
453554483.43392
Perimeter
288741752
Area
5210737459251844
Diagonal
102085625.42544
Surface area
31264424755511064
Volume
3.761393657991E+23
Space diagonal
125028846.18261
Perimeter
216556314
Area
2.2563155060816E+15
Altitude
62514423.091307
Surface area
2.2563155060816E+15
Volume
4.4328449371292E+22
Height
34028541.808481