28998909 is an odd 8-digits composite number following 28998908
and preceding 28998910 . In scientific notation, it is written as 2.8998909 × 10^7.
The sum of its digits is 54. It has a total of 2 prime factors and 4 positive divisors.
There are 19332600 positive integers (up to 28998909) that are relatively prime to 28998909.
28998909 has 4 divisors, whose sum is 32221020
The reverse of 28998909 is 90989982
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
twenty-eight million nine hundred ninety-eight thousand nine hundred nine
Scientific notation
2.8998909 × 10^7
Engineering notation
2.8998909 × 10^6
Prime Factorization
9 × 3222101
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28998909
Product of the distinct prime numbers
The prime factorization of 28998909 is 9 × 3222101.
Since it has a total of 2 prime factors.
8 , 1 , 43 , 79 , 342 , 287 , 595 , 6836 , 26633 , 76904 , 737243 , 696784 , 8352986 , 8313007 , 55724631 , 82542767 , 518498253 , 974871184 , 1263060989 , 4439679233
n×2
57997818
n×3
86996727
n×4
115995636
n×5
144994545
n÷2
14499454.5
n÷3
9666303
n÷3
7249727.25
n÷5
5799781.8
n2
840936723190281
n3
2.4386247510553E+22
n4
7.0717457241001E+29
n5
2.0507291072432E+37
2 √n
5385.0635093748
3 √n
307.22782976434
4 √n
73.382991962544
5 √n
31.079665202176
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
-28998908
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 28998909 can be divided by 4 positive divisors.
The sum of these divisors (counting 28998909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100111110011111101
3
Ternary
2000120022000200
4
Quaternary
1232213303331
5
Quinary
24410431114
6
Senary
2513314113
8
Octal
156476375
10
Decimal
28998909
12
Duodecimal
9865939
16
Hexadecimal
1ba7cfd
20
Vigesimal
914h59
36
Base36
h9jp9
md5
1664d01e0a7d941b323fe1f370533048
sha1
865dba67b5d58f82e43b4ae8e588d9f73eff61db
sha256
4b71172f9cb73a377ed98ced014534b49446594c496f9c5c34634318733b0134
sha512
8ebdd90078b648f9efec30483095b631d5f974cf99fcc3dc4592eb215c3ccefa8126d04fd399d1425a78794a6133e5ba17a01c4ee846887a023395c03328d1bc
ripemd-160
6cd6da9feaad43b309b8c4f7e4e1849948bbd196
Diameter
57997818
Circumference
182205518.95304
Area
2.6418806317085E+15
Volume
1.021488747037E+23
Surface area
1.0567522526834E+16
Circumference
182205518.95304
Perimeter
115995636
Area
840936723190281
Diagonal
41010650.401823
Surface area
5045620339141686
Volume
2.4386247510553E+22
Space diagonal
50227583.752066
Perimeter
86996727
Area
3.6413628262901E+14
Altitude
25113791.876033
Surface area
3.6413628262901E+14
Volume
2.8739468304009E+21
Height
13670216.800608