28185655 is an odd 8-digits composite number following 28185654
and preceding 28185656 . In scientific notation, it is written as 2.8185655 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 21998400 positive integers (up to 28185655) that are relatively prime to 28185655.
28185655 has 8 divisors, whose sum is 34647984
The reverse of 28185655 is 55658182
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million one hundred eighty-five thousand six hundred fifty-five
Scientific notation
2.8185655 × 10^7
Engineering notation
2.8185655 × 10^6
Prime Factorization
5 × 41 × 137491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28185655
Product of the distinct prime numbers
The prime factorization of 28185655 is 5 × 41 × 137491.
Since it has a total of 3 prime factors.
6 , 10 , 18 , 6 , 751 , 764 , 2731 , 7544 , 15579 , 79984 , 176876 , 121209 , 3880200 , 742206 , 74428249 , 60771060 , 827178850 , 654116652 , 4936868592 , 6515122861
n×2
56371310
n×3
84556965
n×4
112742620
n×5
140928275
n÷2
14092827.5
n÷3
9395218.3333333
n÷3
7046413.75
n÷5
5637131
n2
794431147779025
n3
2.2391562252554E+22
n4
6.311208485615E+29
n5
1.7788554500862E+37
2 √n
5309.0163872416
3 √n
304.32855967509
4 √n
72.8629973803
5 √n
30.903354680038
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
-28185654
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 28185655 can be divided by 8 positive divisors.
The sum of these divisors (counting 28185655) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011100001010000110111
3
Ternary
1222000222110011
4
Quaternary
1223201100313
5
Quinary
24203420110
6
Senary
2444041051
8
Octal
153412067
10
Decimal
28185655
12
Duodecimal
9533187
16
Hexadecimal
1ae1437
20
Vigesimal
8g342f
36
Base36
gs46v
md5
95798d6b40d4b06c4b908fbe673e061e
sha1
c0078204fc22aafebcfb7ce898b197fc0ccacd20
sha256
11171f6d3337af409cf29d913f15ea82e383e00ffa2e2482b830e7ac93d86bc4
sha512
06d6bec287b7f382fbaeb06a03dd25f2cb7a162f7c24196ffb91cbf7a762923c036009881d3b282e8c15449da5dbf931854a337bad8fd81f970c7fa49ac6ddcf
ripemd-160
0e8a67f086fe719130082c55c02ce634a40bb994
Diameter
56371310
Circumference
177095693.36923
Area
2.4957790576455E+15
Volume
9.3793556633361E+22
Surface area
9.983116230582E+15
Circumference
177095693.36923
Perimeter
112742620
Area
794431147779025
Diagonal
39860535.565369
Surface area
4766586886674150
Volume
2.2391562252554E+22
Space diagonal
48818986.504608
Perimeter
84556965
Area
3.4399877776713E+14
Altitude
24409493.252304
Surface area
3.4399877776713E+14
Volume
2.6388709183569E+21
Height
13286845.188456