28931427 is an odd 8-digits composite number following 28931426
and preceding 28931428 . In scientific notation, it is written as 2.8931427 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 16532208 positive integers (up to 28931427) that are relatively prime to 28931427.
28931427 has 8 divisors, whose sum is 36738400
The reverse of 28931427 is 72413982
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million nine hundred thirty-one thousand four hundred twenty-seven
Scientific notation
2.8931427 × 10^7
Engineering notation
2.8931427 × 10^6
Prime Factorization
9 × 7 × 459229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931427
Product of the distinct prime numbers
The prime factorization of 28931427 is 9 × 7 × 459229.
Since it has a total of 3 prime factors.
1 , 2 , 97 , 4 , 636 , 915 , 9023 , 1170 , 94725 , 43173 , 648583 , 839360 , 1365844 , 3751788 , 25438032 , 76787333 , 10784235 , 160977440 , 6390247333 , 6862155061
n×2
57862854
n×3
86794281
n×4
115725708
n×5
144657135
n÷2
14465713.5
n÷3
9643809
n÷3
7232856.75
n÷5
5786285.4
n2
837027468256329
n3
2.4216399094853E+22
n4
7.006149826156E+29
n5
2.0269791224649E+37
2 √n
5378.7941957283
3 √n
306.98933284952
4 √n
73.3402631283
5 √n
31.06518691318
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
-28931426
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 28931427 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931427) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111010101100011
3
Ternary
2000102212110100
4
Quaternary
1232113111203
5
Quinary
24401301202
6
Senary
2512033443
8
Octal
156272543
10
Decimal
28931427
12
Duodecimal
9832883
16
Hexadecimal
1b97563
20
Vigesimal
90g8b7
36
Base36
h83mr
md5
e938c140a26c4b38867e5ea01924e3cf
sha1
9ca70313cf55e4e7b6460bd56843bb90d84d2542
sha256
9465b76cc586d07469cd1906080751cd6b14b0fb9aeb33b26bd47644203ea40a
sha512
eed99bbe1d4c3032cb331a9fb021e435b81ac347b4f18cba445bc4e685bc074d288ebb961bd0607d068667a32f1e02c735e95e0d4a492afc2af0eee3c3a2f5bf
ripemd-160
a412e2784b28b24a7186be7889ee2d20b3dd6c02
Diameter
57862854
Circumference
181781517.04214
Area
2.6295993451269E+15
Volume
1.0143741532372E+23
Surface area
1.0518397380508E+16
Circumference
181781517.04214
Perimeter
115725708
Area
837027468256329
Diagonal
40915216.442207
Surface area
5022164809537974
Volume
2.4216399094853E+22
Space diagonal
50110701.49947
Perimeter
86794281
Area
3.6244352558768E+14
Altitude
25055350.749735
Surface area
3.6244352558768E+14
Volume
2.8539300026484E+21
Height
13638405.480736