72171491 is an odd 8-digits composite number following 72171490
and preceding 72171492 . In scientific notation, it is written as 7.2171491 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 61861272 positive integers (up to 72171491) that are relatively prime to 72171491.
72171491 has 4 divisors, whose sum is 82481712
The reverse of 72171491 is 19417127
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-two million one hundred seventy-one thousand four hundred ninety-one
Scientific notation
7.2171491 × 10^7
Engineering notation
7.2171491 × 10^6
Prime Factorization
7 × 10310213
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72171491
Product of the distinct prime numbers
The prime factorization of 72171491 is 7 × 10310213.
Since it has a total of 2 prime factors.
3 , 5 , 87 , 38 , 357 , 679 , 5897 , 6618 , 30385 , 52649 , 246029 , 293180 , 582364 , 6670789 , 49338220 , 75577722 , 770018714 , 880391858 , 9726875605 , 4579326668
n×2
144342982
n×3
216514473
n×4
288685964
n×5
360857455
n÷2
36085745.5
n÷3
24057163.666667
n÷3
18042872.75
n÷5
14434298.2
n2
5208724113163081
n3
3.7592138545463E+23
n4
2.7130806887047E+31
n5
1.9580707850712E+39
2 √n
8495.3805682853
3 √n
416.34679499769
4 √n
92.170388782327
5 √n
37.296934298297
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72171490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72171491 can be divided by 4 positive divisors.
The sum of these divisors (counting 72171491) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010011111111100011
3
Ternary
12000210200200012
4
Quaternary
10103103333203
5
Quinary
121433441431
6
Senary
11054515135
8
Octal
423237743
10
Decimal
72171491
12
Duodecimal
20205aab
16
Hexadecimal
44d3fe3
20
Vigesimal
12b18eb
36
Base36
16yvvn
md5
3bc3932dc4adc10cfc0e3a861da3a0dd
sha1
d3fa85eee80fb031354ef24420a9ed637a1cf5c3
sha256
a49b162e4e2358eba6fe6dfd878fa8463cdfe29b1e4ddadc6cdbcfff2e404e57
sha512
6b034b1c27a9b266994c23e0735b4a2bf2db17452aae4a1175ab0dedb2726d5a3da230a2aea1e4683d35c8df35bc109ff26184523b463d3314e939c1fbc9cd27
ripemd-160
3a74280e11ca7bf5b84b0ee021ee53013145bf31
Diameter
144342982
Circumference
453466851.84844
Area
1.6363689408489E+16
Volume
1.5746558171621E+24
Surface area
6.5454757633957E+16
Circumference
453466851.84844
Perimeter
288685964
Area
5208724113163081
Diagonal
102065901.38889
Surface area
31252344678978486
Volume
3.7592138545463E+23
Space diagonal
125004689.27
Perimeter
216514473
Area
2.2554437016519E+15
Altitude
62502344.635
Surface area
2.2554437016519E+15
Volume
4.4302760141335E+22
Height
34021967.129629