28998749 is an odd 8-digits composite number following 28998748
and preceding 28998750 . In scientific notation, it is written as 2.8998749 × 10^7.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 26768064 positive integers (up to 28998749) that are relatively prime to 28998749.
28998749 has 4 divisors, whose sum is 31229436
The reverse of 28998749 is 94789982
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
twenty-eight million nine hundred ninety-eight thousand seven hundred forty-nine
Scientific notation
2.8998749 × 10^7
Engineering notation
2.8998749 × 10^6
Prime Factorization
13 × 2230673
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28998749
Product of the distinct prime numbers
The prime factorization of 28998749 is 13 × 2230673.
Since it has a total of 2 prime factors.
8 , 1 , 9 , 50 , 295 , 825 , 1531 , 8189 , 17089 , 3609 , 3432 , 223854 , 5438123 , 3318371 , 11892627 , 43375881 , 333215238 , 241868772 , 1943119219 , 816306385
n×2
57997498
n×3
86996247
n×4
115994996
n×5
144993745
n÷2
14499374.5
n÷3
9666249.6666667
n÷3
7249687.25
n÷5
5799749.8
n2
840927443565001
n3
2.4385843863153E+22
n4
7.0715896534077E+29
n5
2.0506725339017E+37
2 √n
5385.0486534478
3 √n
307.22726472535
4 √n
73.382890740607
5 √n
31.079630906008
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
-28998748
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 28998749 can be divided by 4 positive divisors.
The sum of these divisors (counting 28998749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100111110001011101
3
Ternary
2000120021210202
4
Quaternary
1232213301131
5
Quinary
24410424444
6
Senary
2513313245
8
Octal
156476135
10
Decimal
28998749
12
Duodecimal
9865825
16
Hexadecimal
1ba7c5d
20
Vigesimal
914gh9
36
Base36
h9jkt
md5
18f25ea524393c29522d63d8ceedc14a
sha1
3fa9c5d33e3f5ff5fad9a2b5dfacc608be3fb235
sha256
6fdcf0d7686b4c6222e164fa75bffcfabc96cc63285aebae86d20a3cd44a9c64
sha512
68c21b979612fe681074e2480b9409e352bb1688ea3cdb9e7464b313f67724b9d68e79ab51c8309c59040f13a24e350479a21bed2ec60b1253cb5dcd9f6c611e
ripemd-160
52f27fe6976fa1883c384e7d951541a4e7c2ab3a
Diameter
57997498
Circumference
182204513.64339
Area
2.6418514789059E+15
Volume
1.0214718390943E+23
Surface area
1.0567405915623E+16
Circumference
182204513.64339
Perimeter
115994996
Area
840927443565001
Diagonal
41010424.127653
Surface area
5045564661390006
Volume
2.4385843863153E+22
Space diagonal
50227306.623937
Perimeter
86996247
Area
3.641322644334E+14
Altitude
25113653.311969
Surface area
3.641322644334E+14
Volume
2.8738992600987E+21
Height
13670141.375884