28689091 is an odd 8-digits composite number following 28689090
and preceding 28689092 . In scientific notation, it is written as 2.8689091 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 27699784 positive integers (up to 28689091) that are relatively prime to 28689091.
28689091 has 4 divisors, whose sum is 29678400
The reverse of 28689091 is 19098682
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million six hundred eighty-nine thousand ninety-one
Scientific notation
2.8689091 × 10^7
Engineering notation
2.8689091 × 10^6
Prime Factorization
29 × 989279
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28689091
Product of the distinct prime numbers
The prime factorization of 28689091 is 29 × 989279.
Since it has a total of 2 prime factors.
7 , 4 , 69 , 74 , 749 , 332 , 9400 , 1537 , 19050 , 90226 , 207873 , 863356 , 9462506 , 1388898 , 73658611 , 99472559 , 278028566 , 300552971 , 1948602945 , 2204352895
n×2
57378182
n×3
86067273
n×4
114756364
n×5
143445455
n÷2
14344545.5
n÷3
9563030.3333333
n÷3
7172272.75
n÷5
5737818.2
n2
823063942406281
n3
2.3612956342513E+22
n4
6.7743425328937E+29
n5
1.9434972939136E+37
2 √n
5356.2198423888
3 √n
306.12979172286
4 √n
73.186199808358
5 √n
31.012969897843
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28689090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28689091 can be divided by 4 positive divisors.
The sum of these divisors (counting 28689091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011100001011000011
3
Ternary
1222222120000221
4
Quaternary
1231130023003
5
Quinary
24321022331
6
Senary
2502523511
8
Octal
155341303
10
Decimal
28689091
12
Duodecimal
9736597
16
Hexadecimal
1b5c2c3
20
Vigesimal
8j62eb
36
Base36
h2wn7
md5
9e71b1810115995c7d827cad7325e86e
sha1
c6dd9c993dda02dbb683a34fde2bfc8efc652119
sha256
a1fb8282196e0d3caa30083300fc9806bda45ee6552ae5dbc3e2c24d4bf497ee
sha512
a24df33b7faadb97fa01973ade3a442de5587180e17504716563861da78846154cec39d0fb0e1374038612cb612c54467f2008bcccb5635934ee7f5c1870f256
ripemd-160
1682b34a29bef1f2656c90a415c76dcbd143b9ff
Diameter
57378182
Circumference
180258875.04754
Area
2.5857316348982E+15
Volume
9.8909720233565E+22
Surface area
1.0342926539593E+16
Circumference
180258875.04754
Perimeter
114756364
Area
823063942406281
Diagonal
40572501.584356
Surface area
4938383654437686
Volume
2.3612956342513E+22
Space diagonal
49690963.234967
Perimeter
86067273
Area
3.5639714153141E+14
Altitude
24845481.617484
Surface area
3.5639714153141E+14
Volume
2.7828135922754E+21
Height
13524167.194785