72161855 is an odd 8-digits composite number following 72161854
and preceding 72161856 . In scientific notation, it is written as 7.2161855 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 54332544 positive integers (up to 72161855) that are relatively prime to 72161855.
72161855 has 12 divisors, whose sum is 91989480
The reverse of 72161855 is 55816127
Previous prime number is 17
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 eight hundred fifty-five
Scientific notation
7.2161855 × 10^7
Engineering notation
7.2161855 × 10^6
Prime Factorization
5 × 17 × 17 × 49939
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4244815
Product of the distinct prime numbers
The prime factorization of 72161855 is 5 × 17 × 17 × 49939.
Since it has a total of 4 prime factors.
10 , 8 , 76 , 53 , 927 , 6 , 9345 , 1378 , 18118 , 97222 , 534695 , 909744 , 5400839 , 4423015 , 88704747 , 53730420 , 568018322 , 392718226 , 9551799065 , 447478854
n×2
144323710
n×3
216485565
n×4
288647420
n×5
360809275
n÷2
36080927.5
n÷3
24053951.666667
n÷3
18040463.75
n÷5
14432371
n2
5207333317041025
n3
3.7577083176098E+23
n4
2.7116320274765E+31
n5
1.9567639718012E+39
2 √n
8494.8134176096
3 √n
416.3282646139
4 √n
92.167312088449
5 √n
37.295938302651
1 , 5 , 17 , 85 , 289 , 1445 , 49939 , 249695 , 848963 , 4244815 , 14432371 , 72161855
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72161854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72161855 can be divided by 12 positive divisors.
The sum of these divisors (counting 72161855) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100010011010001101000111111
3
Ternary
12000210012110022
4
Quaternary
10103101220333
5
Quinary
121433134410
6
Senary
11054402355
8
Octal
423215077
10
Decimal
72161855
12
Duodecimal
202003bb
16
Hexadecimal
44d1a3f
20
Vigesimal
12b04cf
36
Base36
16yofz
md5
973871533ef440780d4d272addaef9d8
sha1
843cdd40b2a9a8947913236e45b6ca6c044fed87
sha256
31a0f1fbd5a1ecd65c265fac050d64b66b601a8c8c31efd3b0531600bf29b800
sha512
f8daf77de807168bb8f53637a6b69f4b29aa611f02c50b5bb0e97cdde1c81b4af9f7b700f92cdfdd2184d7d6972e62a6e6e300603b7b935419f4d9ee1ed2b15d
ripemd-160
0ed11ddfa78798a1d4c716c847a0d7c2b0b1f64b
Diameter
144323710
Circumference
453406307.07482
Area
1.6359320093609E+16
Volume
1.5740251793248E+24
Surface area
6.5437280374438E+16
Circumference
453406307.07482
Perimeter
288647420
Area
5207333317041025
Diagonal
102052274.027
Surface area
31243999902246150
Volume
3.7577083176098E+23
Space diagonal
124987999.22842
Perimeter
216485565
Area
2.2548414692653E+15
Altitude
62493999.614209
Surface area
2.2548414692653E+15
Volume
4.4285017218383E+22
Height
34017424.675667