28667989 is an odd 8-digits composite number following 28667988
and preceding 28667990 . In scientific notation, it is written as 2.8667989 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 6 positive divisors.
There are 24572520 positive integers (up to 28667989) that are relatively prime to 28667989.
28667989 has 6 divisors, whose sum is 33348534
The reverse of 28667989 is 98976682
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
twenty-eight million six hundred sixty-seven thousand nine hundred eighty-nine
Scientific notation
2.8667989 × 10^7
Engineering notation
2.8667989 × 10^6
Prime Factorization
7 × 7 × 585061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4095427
Product of the distinct prime numbers
The prime factorization of 28667989 is 7 × 7 × 585061.
Since it has a total of 3 prime factors.
2 , 6 , 18 , 9 , 799 , 591 , 1877 , 222 , 83484 , 76148 , 129135 , 62036 , 7815742 , 8206279 , 56582430 , 59728617 , 362908518 , 484791592 , 9132177988 , 9234646250
n×2
57335978
n×3
86003967
n×4
114671956
n×5
143339945
n÷2
14333994.5
n÷3
9555996.3333333
n÷3
7166997.25
n÷5
5733597.8
n2
821853593304121
n3
2.3560889772453E+22
n4
6.754433288269E+29
n5
1.9363601920933E+37
2 √n
5354.2496206285
3 √n
306.05471631801
4 √n
73.172738233774
5 √n
31.00840629336
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28667988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28667989 can be divided by 6 positive divisors.
The sum of these divisors (counting 28667989) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101101010111000001010101
3
Ternary
1222221111002101
4
Quaternary
1231113001111
5
Quinary
24314333424
6
Senary
2502242101
8
Octal
155270125
10
Decimal
28667989
12
Duodecimal
9726331
16
Hexadecimal
1b57055
20
Vigesimal
8j39j9
36
Base36
h2gd1
md5
abd3ca0d72974668558835af1aea7fa6
sha1
0fbaf3aa40e35ba76a537a305dd4855681388690
sha256
e5daa87b4bbaec386189698d4d324e77114d1a711ed19afeb068fcee6f420ee1
sha512
49331a238dcc02f66e8c8c96bc2fe604c6a707b60e4c8f447f7b23df41000e8f84899268c98bf0d9116c6c33d3a898dbd75b06b7ea08d765c9b0f0a2dfae52d7
ripemd-160
55ae406c55a9d957c7f1f03649d4b90b144a1da7
Diameter
57335978
Circumference
180126287.27119
Area
2.5819292110506E+15
Volume
9.8691624294903E+22
Surface area
1.0327716844202E+16
Circumference
180126287.27119
Perimeter
114671956
Area
821853593304121
Diagonal
40542658.849763
Surface area
4931121559824726
Volume
2.3560889772453E+22
Space diagonal
49654413.498826
Perimeter
86003967
Area
3.5587304499645E+14
Altitude
24827206.749413
Surface area
3.5587304499645E+14
Volume
2.7766774881484E+21
Height
13514219.616588