72161729 is an odd 8-digits composite number following 72161728
and preceding 72161730 . In scientific notation, it is written as 7.2161729 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 70211376 positive integers (up to 72161729) that are relatively prime to 72161729.
72161729 has 4 divisors, whose sum is 74112084
The reverse of 72161729 is 92716127
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-two million one hundred sixty-one thousand seven hundred twenty-nine
Scientific notation
7.2161729 × 10^7
Engineering notation
7.2161729 × 10^6
Prime Factorization
37 × 1950317
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72161729
Product of the distinct prime numbers
The prime factorization of 72161729 is 37 × 1950317.
Since it has a total of 2 prime factors.
8 , 5 , 10 , 30 , 213 , 693 , 5199 , 3615 , 95918 , 45120 , 326481 , 263847 , 9327936 , 4122509 , 36015166 , 91875019 , 500323386 , 531189074 , 2010823084 , 6981563532
n×2
144323458
n×3
216485187
n×4
288646916
n×5
360808645
n÷2
36080864.5
n÷3
24053909.666667
n÷3
18040432.25
n÷5
14432345.8
n2
5207315132269441
n3
3.7576886339243E+23
n4
2.7116130886762E+31
n5
1.9567468885791E+39
2 √n
8494.8060013163
3 √n
416.32802230033
4 √n
92.167271855666
5 √n
37.295925278341
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
-72161728
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 72161729 can be divided by 4 positive divisors.
The sum of these divisors (counting 72161729) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010001100111000001
3
Ternary
12000210012021122
4
Quaternary
10103101213001
5
Quinary
121433133404
6
Senary
11054402025
8
Octal
423214701
10
Decimal
72161729
12
Duodecimal
20200315
16
Hexadecimal
44d19c1
20
Vigesimal
12b0469
36
Base36
16yoch
md5
2369f22e0d677cf8c1badf3fa286c57b
sha1
82a564a1c4748c175f61874e23487de773cda65d
sha256
295c611f6f3b433e054dea5c0a1cfbca099b5b103517caa6abc5f9de2b3f7093
sha512
9d356941467ea2b51105797a784ee8eb50a516e304203e3ab9cddbfa21cbf80c4719959f7ba7c350422a96107a7b8d1040cd2c1c261b709d6b94ef43d9498984
ripemd-160
d20969dd6895461f924266d2a0e1212267ddeede
Diameter
144323458
Circumference
453405515.39348
Area
1.6359262964465E+16
Volume
1.5740169342419E+24
Surface area
6.5437051857859E+16
Circumference
453405515.39348
Perimeter
288646916
Area
5207315132269441
Diagonal
102052095.83609
Surface area
31243890793616646
Volume
3.7576886339243E+23
Space diagonal
124987780.99002
Perimeter
216485187
Area
2.2548335950282E+15
Altitude
62493890.495008
Surface area
2.2548335950282E+15
Volume
4.4284785243924E+22
Height
34017365.278697