72161009 is an odd 8-digits composite number following 72161008
and preceding 72161010 . In scientific notation, it is written as 7.2161009 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 69854400 positive integers (up to 72161009) that are relatively prime to 72161009.
72161009 has 8 divisors, whose sum is 74497632
The reverse of 72161009 is 90016127
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
seventy-two million one hundred sixty-one thousand nine
Scientific notation
7.2161009 × 10^7
Engineering notation
7.2161009 × 10^6
Prime Factorization
43 × 113 × 14851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72161009
Product of the distinct prime numbers
The prime factorization of 72161009 is 43 × 113 × 14851.
Since it has a total of 3 prime factors.
1 , 9 , 61 , 74 , 801 , 477 , 5426 , 5499 , 11256 , 97669 , 664748 , 611833 , 1920041 , 2932516 , 19610012 , 1456517 , 101663073 , 607107198 , 1177967389 , 5448801403
n×2
144322018
n×3
216483027
n×4
288644036
n×5
360805045
n÷2
36080504.5
n÷3
24053669.666667
n÷3
18040252.25
n÷5
14432201.8
n2
5207211219898081
n3
3.7575761570397E+23
n4
2.7115048688632E+31
n5
1.9566492724558E+39
2 √n
8494.7636223735
3 √n
416.3266376459
4 √n
92.16704195304
5 √n
37.295850853369
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
-72161008
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 72161009 can be divided by 8 positive divisors.
The sum of these divisors (counting 72161009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010001011011110001
3
Ternary
12000210011021222
4
Quaternary
10103101123301
5
Quinary
121433123014
6
Senary
11054354425
8
Octal
423213361
10
Decimal
72161009
12
Duodecimal
201bba15
16
Hexadecimal
44d16f1
20
Vigesimal
12b02a9
36
Base36
16ynsh
md5
542d84786024b553d0595c1a19830101
sha1
69fac857ff38d4dfde80fbb6c8846e6852eeb7f1
sha256
705f01287b04d67b01fbfe9f5ffed06d1fc90ab09bacf95cc2b3a89647fafcc3
sha512
e3d3519cb7cddfac5fbf5957643ba033a3eb4e72eb754d7bc6ec1233cb1721cf162f341484da52fde51c915ce67539dc60abc7beec9a1246c86369667ad7a93a
ripemd-160
59e039d03155c845ceaf016f0446ce2a8f9d082a
Diameter
144322018
Circumference
453400991.50005
Area
1.6358936514122E+16
Volume
1.5739698200347E+24
Surface area
6.5435746056489E+16
Circumference
453400991.50005
Perimeter
288644036
Area
5207211219898081
Diagonal
102051077.60233
Surface area
31243267319388486
Volume
3.7575761570397E+23
Space diagonal
124986533.91344
Perimeter
216483027
Area
2.2547885996515E+15
Altitude
62493266.956718
Surface area
2.2547885996515E+15
Volume
4.4283459691127E+22
Height
34017025.867442