28998749 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-eight thousand seven hundred forty-nine

Notation

Scientific notation 2.8998749 × 10^7
Engineering notation 2.8998749 × 10^6

Prime Factorization of 28998749

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.

Most popular turbo-numbers

Basic calculations (n = 28998749)

Multiplication

n×y
n×2 57997498
n×3 86996247
n×4 115994996
n×5 144993745

Division

n÷y
n÷2 14499374.5
n÷3 9666249.6666667
n÷3 7249687.25
n÷5 5799749.8

Exponentiation

ny
n2 840927443565001
n3 2.4385843863153E+22
n4 7.0715896534077E+29
n5 2.0506725339017E+37

Nth Root

y√n
2√n 5385.0486534478
3√n 307.22726472535
4√n 73.382890740607
5√n 31.079630906008

Divisors of 28998749

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 conversion 28998749

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

Cryptographic Hash Functions

md5 18f25ea524393c29522d63d8ceedc14a
sha1 3fa9c5d33e3f5ff5fad9a2b5dfacc608be3fb235
sha256 6fdcf0d7686b4c6222e164fa75bffcfabc96cc63285aebae86d20a3cd44a9c64
sha512 68c21b979612fe681074e2480b9409e352bb1688ea3cdb9e7464b313f67724b9d68e79ab51c8309c59040f13a24e350479a21bed2ec60b1253cb5dcd9f6c611e
ripemd-160 52f27fe6976fa1883c384e7d951541a4e7c2ab3a

28998749 as geometric shapes

Circle

Radius = n
Diameter 57997498
Circumference 182204513.64339
Area 2.6418514789059E+15

Sphere

Radius = n
Volume 1.0214718390943E+23
Surface area 1.0567405915623E+16
Circumference 182204513.64339

Square

Length = n
Perimeter 115994996
Area 840927443565001
Diagonal 41010424.127653

Cube

Length = n
Surface area 5045564661390006
Volume 2.4385843863153E+22
Space diagonal 50227306.623937

Equilateral Triangle

Length = n
Perimeter 86996247
Area 3.641322644334E+14
Altitude 25113653.311969

Triangular Pyramid

Length = n
Surface area 3.641322644334E+14
Volume 2.8738992600987E+21
Height 13670141.375884