72161839 is an odd 8-digits composite number following 72161838
and preceding 72161840 . In scientific notation, it is written as 7.2161839 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 71248320 positive integers (up to 72161839) that are relatively prime to 72161839.
72161839 has 4 divisors, whose sum is 73075360
The reverse of 72161839 is 93816127
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-two million one hundred sixty-one thousand eight hundred thirty-nine
Scientific notation
7.2161839 × 10^7
Engineering notation
7.2161839 × 10^6
Prime Factorization
79 × 913441
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72161839
Product of the distinct prime numbers
The prime factorization of 72161839 is 79 × 913441.
Since it has a total of 2 prime factors.
8 , 2 , 99 , 79 , 470 , 90 , 5568 , 5843 , 54928 , 34746 , 590422 , 930821 , 6920875 , 8710891 , 38167055 , 46059452 , 382267716 , 667491069 , 6481603959 , 7817917642
n×2
144323678
n×3
216485517
n×4
288647356
n×5
360809195
n÷2
36080919.5
n÷3
24053946.333333
n÷3
18040459.75
n÷5
14432367.8
n2
5207331007861921
n3
3.7577058180904E+23
n4
2.711629622544E+31
n5
1.9567618024965E+39
2 √n
8494.8124758584
3 √n
416.32823384394
4 √n
92.167306979527
5 √n
37.295936648771
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
-72161838
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 72161839 can be divided by 4 positive divisors.
The sum of these divisors (counting 72161839) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010001101000101111
3
Ternary
12000210012102201
4
Quaternary
10103101220233
5
Quinary
121433134324
6
Senary
11054402331
8
Octal
423215057
10
Decimal
72161839
12
Duodecimal
202003a7
16
Hexadecimal
44d1a2f
20
Vigesimal
12b04bj
36
Base36
16yofj
md5
b17a346483690bd89b3531aa62d177df
sha1
f52da460550bc862cea4f4dfc5a58398430847aa
sha256
565675c947cd53971bd4e9db8b6f8c11cbead31f13fac5d800ee66e6f809df8b
sha512
ff7e1671617058871cc43dca394716b585289717414d9af0fd0ebb41065d1ff5201ec159522ac43b2992b343c625bc73b9fe500d9704a9506b91730e474fa735
ripemd-160
aef350442ae1b48f1a042ddc388997604bcd2882
Diameter
144323678
Circumference
453406206.54386
Area
1.6359312839109E+16
Volume
1.5740241323286E+24
Surface area
6.5437251356437E+16
Circumference
453406206.54386
Perimeter
288647356
Area
5207331007861921
Diagonal
102052251.39958
Surface area
31243986047171526
Volume
3.7577058180904E+23
Space diagonal
124987971.51561
Perimeter
216485517
Area
2.2548404693614E+15
Altitude
62493985.757803
Surface area
2.2548404693614E+15
Volume
4.4284987761264E+22
Height
34017417.133195