72191 is an odd 5-digits composite number following 72190
and preceding 72192 . In scientific notation, it is written as 7.2191 × 10^4.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 61872 positive integers (up to 72191) that are relatively prime to 72191.
72191 has 4 divisors, whose sum is 82512
The reverse of 72191 is 19127
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 20
Digital Root 2
Name
seventy-two thousand one hundred ninety-one
Scientific notation
7.2191 × 10^4
Engineering notation
7.2191 × 10^3
Prime Factorization
7 × 10313
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72191
Product of the distinct prime numbers
The prime factorization of 72191 is 7 × 10313.
Since it has a total of 2 prime factors.
2 , 9 , 70 , 16 , 334 , 287 , 1053 , 3513 , 46096 , 64264 , 206292 , 899387 , 6167600 , 139828 , 23844165 , 25743810 , 13629095 , 619550380 , 1702181265 , 8086142214
n×2
144382
n×3
216573
n×4
288764
n×5
360955
n÷2
36095.5
n÷3
24063.666666667
n÷3
18047.75
n÷5
14438.2
n2
5211540481
n3
376226318863871
n4
2.7160154185102E+19
n5
1.9607186907767E+24
2 √n
268.68382906308
3 √n
41.638430647553
4 √n
16.391577991856
5 √n
9.3690727571748
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
-72190
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 72191 can be divided by 4 positive divisors.
The sum of these divisors (counting 72191) is 1, the average is 0.25.
Base
System
Value
2
Binary
10001100111111111
3
Ternary
10200000202
4
Quaternary
101213333
5
Quinary
4302231
6
Senary
1314115
8
Octal
214777
10
Decimal
72191
12
Duodecimal
3593b
16
Hexadecimal
119ff
20
Vigesimal
909b
36
Base36
1jpb
md5
fc8805ca7688501c002a8ce398dbc795
sha1
6063c3fe3ee81f62a8659399d68f8f16cb64a51f
sha256
359530daa9dce1f81c0bff28f7909e14b2b4509cb873fb92689f99bc2329f8bf
sha512
ca578868613a695d7e571a8ab6a5ada21144be63b8d36288e7f4fc207863f8a4f793a11aa08db8ea45753a30030e3eb9d2a12f9ff40a644df809eaf6f80632c3
ripemd-160
c92624684279870c53529328be21e77320881e6a
Diameter
144382
Circumference
453589.4305106
Area
16372537288.995
Volume
1.5759331192398E+15
Surface area
65490149155.982
Circumference
453589.4305106
Perimeter
288764
Area
5211540481
Diagonal
102093.49128128
Surface area
31269242886
Volume
376226318863871
Space diagonal
125038.4798492
Perimeter
216573
Area
2256663224.6985
Altitude
62519.239924602
Surface area
2256663224.6985
Volume
44338696888249
Height
34031.163760425