72378891 is an odd 8-digits composite number following 72378890
and preceding 72378892 . In scientific notation, it is written as 7.2378891 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 43908480 positive integers (up to 72378891) that are relatively prime to 72378891.
72378891 has 16 divisors, whose sum is 87837120
The reverse of 72378891 is 19887327
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million three hundred seventy-eight thousand eight hundred ninety-one
Scientific notation
7.2378891 × 10^7
Engineering notation
7.2378891 × 10^6
Prime Factorization
9 × 13 × 71 × 8713
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72378891
Product of the distinct prime numbers
The prime factorization of 72378891 is 9 × 13 × 71 × 8713.
Since it has a total of 4 prime factors.
1 , 8 , 30 , 11 , 582 , 107 , 1989 , 9532 , 70877 , 95130 , 449943 , 269727 , 2893031 , 4699087 , 92111018 , 36582925 , 900111626 , 769494028 , 9386028274 , 8736139278
n×2
144757782
n×3
217136673
n×4
289515564
n×5
361894455
n÷2
36189445.5
n÷3
24126297
n÷3
18094722.75
n÷5
14475778.2
n2
5238703862389881
n3
3.791715758372E+23
n4
2.7444018157819E+31
n5
1.9863675988468E+39
2 √n
8507.5784451276
3 √n
416.74523368218
4 √n
92.23653530531
5 √n
37.318345821501
1 , 9 , 13 , 71 , 117 , 639 , 923 , 8307 , 8713 , 78417 , 113269 , 618623 , 1019421 , 5567607 , 8042099 , 72378891
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72378890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72378891 can be divided by 16 positive divisors.
The sum of these divisors (counting 72378891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010100000110101000001011
3
Ternary
12001012020011200
4
Quaternary
10110012220023
5
Quinary
122012111031
6
Senary
11103155243
8
Octal
424065013
10
Decimal
72378891
12
Duodecimal
202a5b23
16
Hexadecimal
4506a0b
20
Vigesimal
12c774b
36
Base36
173bwr
md5
21c8adfa960d66559bba4d6f9a08d836
sha1
bbf59a08966709cad2a0dc49758eddad177328bc
sha256
79584864c70f94231068e09c4f3b2692765dbb6eab1ee7b6b87b96ed304eaacd
sha512
79e45a46932a1c7a0df152732caf8f181b833b6e4f1b53e12675ac55b0ec03ceaab53c135514119047a223f2341bb19761c9b91b050e0071d029e15a6dd18271
ripemd-160
fad88cfef23e52f0af037868a72fe48752984b8b
Diameter
144757782
Circumference
454769984.48115
Area
1.6457873568417E+16
Volume
1.5882701828003E+24
Surface area
6.5831494273666E+16
Circumference
454769984.48115
Perimeter
289515564
Area
5238703862389881
Diagonal
102359209.28172
Surface area
31432223174339286
Volume
3.791715758372E+23
Space diagonal
125363916.60749
Perimeter
217136673
Area
2.2684253138666E+15
Altitude
62681958.303745
Surface area
2.2684253138666E+15
Volume
4.4685798751278E+22
Height
34119736.427241