28993209 is an odd 8-digits composite number following 28993208
and preceding 28993210 . In scientific notation, it is written as 2.8993209 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 16567536 positive integers (up to 28993209) that are relatively prime to 28993209.
28993209 has 4 divisors, whose sum is 30373860
The reverse of 28993209 is 90239982
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million nine hundred ninety-three thousand two hundred nine
Scientific notation
2.8993209 × 10^7
Engineering notation
2.8993209 × 10^6
Prime Factorization
21 × 1380629
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28993209
Product of the distinct prime numbers
The prime factorization of 28993209 is 21 × 1380629.
Since it has a total of 2 prime factors.
9 , 10 , 58 , 40 , 252 , 94 , 7920 , 3464 , 21260 , 70704 , 721314 , 907673 , 3241454 , 7092484 , 49312077 , 73558292 , 209213328 , 321458481 , 2212471680 , 8481163979
n×2
57986418
n×3
86979627
n×4
115972836
n×5
144966045
n÷2
14496604.5
n÷3
9664403
n÷3
7248302.25
n÷5
5798641.8
n2
840606168117681
n3
2.4371870318925E+22
n4
7.0661872987749E+29
n5
2.0487144518653E+37
2 √n
5384.5342416963
3 √n
307.20769896815
4 √n
73.379385672655
5 √n
31.078443307782
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
-28993208
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 28993209 can be divided by 4 positive divisors.
The sum of these divisors (counting 28993209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110011010111001
3
Ternary
2000120000012120
4
Quaternary
1232212122321
5
Quinary
24410240314
6
Senary
2513231453
8
Octal
156463271
10
Decimal
28993209
12
Duodecimal
9862589
16
Hexadecimal
1ba66b9
20
Vigesimal
914309
36
Base36
h9fax
md5
8aa4cb4a2de096f640737b0a4fa4693e
sha1
2bb2e9a06035ea5891029485959bacc9a0e62d9b
sha256
4e6de4f581bdeafd93519d86a385a024c45e82cb899c09b66417d8d0e635c165
sha512
aa94bcf53ad4d248509fc1f2186050e8bdc94080189e3931189c95c655b35132c6b1f8b9219d4d526ac12249a9ff362df2c8e448c28b25b6b200dbb0777090eb
ripemd-160
e16773d45c3182ab3e2c2ef8cac222e20bf36fe3
Diameter
57986418
Circumference
182169704.79679
Area
2.6408421623208E+15
Volume
1.0208865166424E+23
Surface area
1.0563368649283E+16
Circumference
182169704.79679
Perimeter
115972836
Area
840606168117681
Diagonal
41002589.384518
Surface area
5043637008706086
Volume
2.4371870318925E+22
Space diagonal
50217711.062463
Perimeter
86979627
Area
3.639931480839E+14
Altitude
25108855.531232
Surface area
3.639931480839E+14
Volume
2.8722524621185E+21
Height
13667529.794839