72028991 is an odd 8-digits prime number following 72028990
and preceding 72028992 . In scientific notation, it is written as 7.2028991 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 72028990 positive integers (up to 72028991) that are relatively prime to 72028991.
72028991 has 2 divisors, whose sum is 72028992
The reverse of 72028991 is 19982027
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million twenty-eight thousand nine hundred ninety-one
Scientific notation
7.2028991 × 10^7
Engineering notation
7.2028991 × 10^6
Prime Factorization
72028991
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
72028991
Product of the distinct prime numbers
The prime factorization of 72028991 is 72028991.
Since it has a total of 1 prime factors.
4 , 8 , 12 , 32 , 409 , 724 , 8523 , 7211 , 50921 , 33073 , 714515 , 174609 , 6913312 , 3914849 , 80760285 , 41159240 , 115860745 , 597638888 , 7478326927 , 8983402980
n×2
144057982
n×3
216086973
n×4
288115964
n×5
360144955
n÷2
36014495.5
n÷3
24009663.666667
n÷3
18007247.75
n÷5
14405798.2
n2
5188175544478081
n3
3.7369904959963E+23
n4
2.691716548032E+31
n5
1.9388162701275E+39
2 √n
8486.9895133669
3 √n
416.0725938864
4 √n
92.124858281394
5 √n
37.282194362608
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
72028992
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
36014496
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
8486.9895722806
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999722334
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72028991 can be divided by 2 positive divisors.
The sum of these divisors (counting 72028991) is 72028992, the average is 36014496.
Base
System
Value
2
Binary
100010010110001001100111111
3
Ternary
12000112110012102
4
Quaternary
10102301030333
5
Quinary
121414411431
6
Senary
11051455315
8
Octal
422611477
10
Decimal
72028991
12
Duodecimal
2015753b
16
Hexadecimal
44b133f
20
Vigesimal
12a3c9b
36
Base36
16vtxb
md5
57a86112f86008077ed897822dfef215
sha1
9d30e01f763e17bf3a8db8735b8a453285722a9c
sha256
34206f1eb1c66a3b61f25178d3c1eebc2092cd39e45ee289ce12e1de87a300ce
sha512
748a6f518240ae34047b9b8ab2617512f83251abac6e67e666ed810be8497523e0ddc0559c58be9e6feb274778330eb0b3c1917fa4b2504bca6cde3f1ab20fac
ripemd-160
0fb5c35aea6636fbc6de20f0d6e37614ea452b34
Diameter
144057982
Circumference
452571497.94217
Area
1.6299134176067E+16
Volume
1.5653469185009E+24
Surface area
6.5196536704266E+16
Circumference
452571497.94217
Perimeter
288115964
Area
5188175544478081
Diagonal
101864375.95625
Surface area
31129053266868486
Volume
3.7369904959963E+23
Space diagonal
124757872.02992
Perimeter
216086973
Area
2.2465459104056E+15
Altitude
62378936.014961
Surface area
2.2465459104056E+15
Volume
4.4040855349145E+22
Height
33954791.985417