72891666 is an even 8-digits composite number following 72891665
and preceding 72891667 . In scientific notation, it is written as 7.2891666 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 24297216 positive integers (up to 72891666) that are relatively prime to 72891666.
72891666 has 8 divisors, whose sum is 121486140
The reverse of 72891666 is 66619827
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million eight hundred ninety-one thousand six hundred sixty-six
Scientific notation
7.2891666 × 10^7
Engineering notation
7.2891666 × 10^6
Prime Factorization
2 × 9 × 4049537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72891666
Product of the distinct prime numbers
The prime factorization of 72891666 is 2 × 9 × 4049537.
Since it has a total of 3 prime factors.
2 , 1 , 43 , 72 , 835 , 911 , 3916 , 6478 , 15415 , 48750 , 608628 , 918518 , 8742276 , 8023191 , 51425008 , 92769016 , 338449951 , 126833334 , 5052239158 , 3028181016
n×2
145783332
n×3
218674998
n×4
291566664
n×5
364458330
n÷2
36445833
n÷3
24297222
n÷3
18222916.5
n÷5
14578333.2
n2
5313194972255556
n3
3.8728763331053E+23
n4
2.8230040813202E+31
n5
2.0577347061223E+39
2 √n
8537.6616236532
3 √n
417.7270754879
4 √n
92.399467658927
5 √n
37.371073670241
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72891665
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72891666 can be divided by 8 positive divisors.
The sum of these divisors (counting 72891666) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010110000011110100010010
3
Ternary
12002011021120100
4
Quaternary
10112003310102
5
Quinary
122130013131
6
Senary
11122153230
8
Octal
426036422
10
Decimal
72891666
12
Duodecimal
204b2816
16
Hexadecimal
4583d12
20
Vigesimal
12fb936
36
Base36
17ebki
md5
11dd5fb470571a4b5fbb3274dc86645f
sha1
29d2cf7b09364c6f7e445a66c1428e139cc37a82
sha256
c7504f167732ef1ac84c5548f7577984b42ece05e91e9ecf0878ed7e013b16c4
sha512
57d172e2c946b350a84e3a3be96c85eae1f5ad964c56b43961a83e1074775dd9818f06c85bf13f6d87a5a4bcd11e3e8d6e9bf4cf4c9abe5eaceec36e11d3af0e
ripemd-160
80236f7c05800ed769c21f7eca9931f184a07dd4
Diameter
145783332
Circumference
457991844.82704
Area
1.6691894291928E+16
Volume
1.6222666448461E+24
Surface area
6.6767577167713E+16
Circumference
457991844.82704
Perimeter
291566664
Area
5313194972255556
Diagonal
103084382.64117
Surface area
31879169833533336
Volume
3.8728763331053E+23
Space diagonal
126252068.96034
Perimeter
218674998
Area
2.3006809106165E+15
Altitude
63126034.48017
Surface area
2.3006809106165E+15
Volume
4.5642285297261E+22
Height
34361460.88039