72189871 is an odd 8-digits composite number following 72189870
and preceding 72189872 . In scientific notation, it is written as 7.2189871 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 62714496 positive integers (up to 72189871) that are relatively prime to 72189871.
72189871 has 12 divisors, whose sum is 82771632
The reverse of 72189871 is 17898127
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-two million one hundred eighty-nine thousand eight hundred seventy-one
Scientific notation
7.2189871 × 10^7
Engineering notation
7.2189871 × 10^6
Prime Factorization
17 × 13 × 13 × 25127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5553067
Product of the distinct prime numbers
The prime factorization of 72189871 is 17 × 13 × 13 × 25127.
Since it has a total of 4 prime factors.
1 , 7 , 54 , 68 , 976 , 115 , 5215 , 3716 , 71316 , 80110 , 377120 , 770410 , 3062231 , 9661284 , 9343033 , 39254902 , 725435826 , 673805731 , 6503655853 , 5823707212
n×2
144379742
n×3
216569613
n×4
288759484
n×5
360949355
n÷2
36094935.5
n÷3
24063290.333333
n÷3
18047467.75
n÷5
14437974.2
n2
5211377474996641
n3
3.7620866765231E+23
n4
2.7158455186902E+31
n5
1.9605653765018E+39
2 √n
8496.4622637896
3 √n
416.38213584331
4 √n
92.176256507788
5 √n
37.298833795788
1 , 13 , 17 , 169 , 221 , 2873 , 25127 , 326651 , 427159 , 4246463 , 5553067 , 72189871
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
-72189870
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 72189871 can be divided by 12 positive divisors.
The sum of these divisors (counting 72189871) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100010011011000011110101111
3
Ternary
12000211121212221
4
Quaternary
10103120132233
5
Quinary
121440033441
6
Senary
11055140211
8
Octal
423303657
10
Decimal
72189871
12
Duodecimal
20214667
16
Hexadecimal
44d87af
20
Vigesimal
12b3edb
36
Base36
16za27
md5
93d7f520e1766cbce7a56b02eb3a2b62
sha1
97fdd07db6e10308d11b74180106f5e99edf8a8e
sha256
f64de391339e1b71335699b3bfd6a75b56bbe4883312c0a34e37a4b3c6f63744
sha512
df1873a5ca7e41f7297acb684390402830fbc786c584efc2e91b39f17f38bb1a933a9fb0e94536e94e38eff593aa2cb78534e89289835d98f7aee618a476636b
ripemd-160
d462f8129564d914751fafb07fb197fe3d11600c
Diameter
144379742
Circumference
453582336.79439
Area
1.6372025190533E+16
Volume
1.5758591820177E+24
Surface area
6.5488100762131E+16
Circumference
453582336.79439
Perimeter
288759484
Area
5211377474996641
Diagonal
102091894.63416
Surface area
31268264849979846
Volume
3.7620866765231E+23
Space diagonal
125036524.36384
Perimeter
216569613
Area
2.2565926410285E+15
Altitude
62518262.181922
Surface area
2.2565926410285E+15
Volume
4.4336616673018E+22
Height
34030631.544721