72161609 is an odd 8-digits composite number following 72161608
and preceding 72161610 . In scientific notation, it is written as 7.2161609 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 66361680 positive integers (up to 72161609) that are relatively prime to 72161609.
72161609 has 8 divisors, whose sum is 78003072
The reverse of 72161609 is 90616127
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-two million one hundred sixty-one thousand six hundred nine
Scientific notation
7.2161609 × 10^7
Engineering notation
7.2161609 × 10^6
Prime Factorization
13 × 271 × 20483
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72161609
Product of the distinct prime numbers
The prime factorization of 72161609 is 13 × 271 × 20483.
Since it has a total of 3 prime factors.
3 , 7 , 22 , 74 , 945 , 57 , 7313 , 507 , 65875 , 11489 , 53727 , 910699 , 2352519 , 7532799 , 84379179 , 936428 , 241984038 , 5557442 , 5437261789 , 4483309812
n×2
144323218
n×3
216484827
n×4
288646436
n×5
360808045
n÷2
36080804.5
n÷3
24053869.666667
n÷3
18040402.25
n÷5
14432321.8
n2
5207297813468881
n3
3.757669887621E+23
n4
2.7115950518158E+31
n5
1.9567306189546E+39
2 √n
8494.7989381739
3 √n
416.32779152523
4 √n
92.167233538682
5 √n
37.295912874221
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
-72161608
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 72161609 can be divided by 8 positive divisors.
The sum of these divisors (counting 72161609) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010001100101001001
3
Ternary
12000210012010012
4
Quaternary
10103101211021
5
Quinary
121433132414
6
Senary
11054401305
8
Octal
423214511
10
Decimal
72161609
12
Duodecimal
20200235
16
Hexadecimal
44d1949
20
Vigesimal
12b0409
36
Base36
16yo95
md5
bedf4146bd269d8b5fab48b71a35d146
sha1
e6c6f378238bdf8d24dc7508a785769cef450846
sha256
ecefa57b8f47bdd6166025b4605d19ccc0d0d8f0fd795819ec6aaf1baf886aff
sha512
bb2c57f1abe4bf48abea420dee5c658173f72ab7435f3c1e92daf8e0c28b4980b87164d9641de4c7f5da6543a58eabf516321b43a5ad9282f87f60da04f6ece6
ripemd-160
42fa625cae3550b00baf3be9ae05be63d72717dd
Diameter
144323218
Circumference
453404761.41124
Area
1.6359208555848E+16
Volume
1.5740090818087E+24
Surface area
6.5436834223392E+16
Circumference
453404761.41124
Perimeter
288646436
Area
5207297813468881
Diagonal
102051926.13046
Surface area
31243786880813286
Volume
3.757669887621E+23
Space diagonal
124987573.14392
Perimeter
216484827
Area
2.2548260957676E+15
Altitude
62493786.57196
Surface area
2.2548260957676E+15
Volume
4.4284564316621E+22
Height
34017308.710155