28985809 is an odd 8-digits composite number following 28985808
and preceding 28985810 . In scientific notation, it is written as 2.8985809 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 28566000 positive integers (up to 28985809) that are relatively prime to 28985809.
28985809 has 8 divisors, whose sum is 29408960
The reverse of 28985809 is 90858982
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million nine hundred eighty-five thousand eight hundred nine
Scientific notation
2.8985809 × 10^7
Engineering notation
2.8985809 × 10^6
Prime Factorization
139 × 151 × 1381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28985809
Product of the distinct prime numbers
The prime factorization of 28985809 is 139 × 151 × 1381.
Since it has a total of 3 prime factors.
8 , 2 , 41 , 90 , 156 , 291 , 9190 , 1565 , 2892 , 56642 , 884702 , 645795 , 6476473 , 9855206 , 51662632 , 36850632 , 242399942 , 723131299 , 4241918039 , 8094326024
n×2
57971618
n×3
86957427
n×4
115943236
n×5
144929045
n÷2
14492904.5
n÷3
9661936.3333333
n÷3
7246452.25
n÷5
5797161.8
n2
840177123384481
n3
2.4353213624592E+22
n4
7.0589759865862E+29
n5
2.0461012968277E+37
2 √n
5383.8470446327
3 √n
307.18156031376
4 √n
73.374703029264
5 √n
31.076856702012
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
-28985808
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 28985809 can be divided by 8 positive divisors.
The sum of these divisors (counting 28985809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100100100111010001
3
Ternary
2000112122001111
4
Quaternary
1232210213101
5
Quinary
24410021214
6
Senary
2513133321
8
Octal
156444721
10
Decimal
28985809
12
Duodecimal
985a241
16
Hexadecimal
1ba49d1
20
Vigesimal
9134a9
36
Base36
h99ld
md5
c42359810abbe80f37ca919e4635ee81
sha1
c2bbfb59945df2b6ad690ff0cb9eb2935615c075
sha256
04e6b1cc7d90f835b111128bca38dc90d1bfcb5af4fe15e24aa8dbbe40d280af
sha512
6e3cdcc83df47c6a101fa7159b7945e21a23764e185611a3f23890414b362ffff2235cca10a0144379fd27f7aa9aa794319c1d252d0407380d63190a290e6705
ripemd-160
fdecb5342734091bd466f9665ece9a86a0168f1b
Diameter
57971618
Circumference
182123209.22551
Area
2.6394942785389E+15
Volume
1.0201050268576E+23
Surface area
1.0557977114156E+16
Circumference
182123209.22551
Perimeter
115943236
Area
840177123384481
Diagonal
40992124.204156
Surface area
5041062740306886
Volume
2.4353213624592E+22
Space diagonal
50204893.886487
Perimeter
86957427
Area
3.6380736626475E+14
Altitude
25102446.943244
Surface area
3.6380736626475E+14
Volume
2.8700537496056E+21
Height
13664041.401385