28391609 is an odd 8-digits composite number following 28391608
and preceding 28391610 . In scientific notation, it is written as 2.8391609 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 27127296 positive integers (up to 28391609) that are relatively prime to 28391609.
28391609 has 8 divisors, whose sum is 29676360
The reverse of 28391609 is 90619382
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million three hundred ninety-one thousand six hundred nine
Scientific notation
2.8391609 × 10^7
Engineering notation
2.8391609 × 10^6
Prime Factorization
29 × 97 × 10093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28391609
Product of the distinct prime numbers
The prime factorization of 28391609 is 29 × 97 × 10093.
Since it has a total of 3 prime factors.
8 , 2 , 98 , 15 , 249 , 158 , 747 , 1719 , 73384 , 98592 , 256957 , 129639 , 7005150 , 4683584 , 15092247 , 6477418 , 352137284 , 312497418 , 55711021 , 8762939393
n×2
56783218
n×3
85174827
n×4
113566436
n×5
141958045
n÷2
14195804.5
n÷3
9463869.6666667
n÷3
7097902.25
n÷5
5678321.8
n2
806083461608881
n3
2.2886006463366E+22
n4
6.4977054707936E+29
n5
1.8448031312393E+37
2 √n
5328.3777080834
3 √n
305.06800955849
4 √n
72.99573760216
5 √n
30.948385727708
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
-28391608
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 28391609 can be divided by 8 positive divisors.
The sum of these divisors (counting 28391609) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010011100010111001
3
Ternary
1222102102222002
4
Quaternary
1230103202321
5
Quinary
24232012414
6
Senary
2452310345
8
Octal
154234271
10
Decimal
28391609
12
Duodecimal
96123b5
16
Hexadecimal
1b138b9
20
Vigesimal
8h8j09
36
Base36
gwj3t
md5
60188e3f7c6e196d02956c580ba8d1b1
sha1
6d73a0f96fdfbf394ce65cc9d0d231dc4057cfa2
sha256
0a2a81930685a9f54af0209bf63f8c689b6da7816e5495d25147942181e9c612
sha512
abcbd12bae68ff39089f09148f485eac1acc4a5e4369aaf6f67c8cb97983c713dca844da6a3af5911ba789a2e4ab3d9e3a805644e1c69d0130c6118dc3552add
ripemd-160
c78ffb06b497fccebcaee017e2e5bb1cd10b3dee
Diameter
56783218
Circumference
178389740.51599
Area
2.5323858811707E+15
Volume
9.5864679700425E+22
Surface area
1.0129543524683E+16
Circumference
178389740.51599
Perimeter
113566436
Area
806083461608881
Diagonal
40151798.505394
Surface area
4836500769653286
Volume
2.2886006463366E+22
Space diagonal
49175709.29663
Perimeter
85174827
Area
3.4904437766189E+14
Altitude
24587854.648315
Surface area
3.4904437766189E+14
Volume
2.6971417274209E+21
Height
13383932.835131