28931904 (number)

28931904 is an even 8-digits composite number following 28931903 and preceding 28931905. In scientific notation, it is written as 2.8931904 × 10^7. The sum of its digits is 36. It has a total of 9 prime factors and 42 positive divisors. There are 9642240 positive integers (up to 28931904) that are relatively prime to 28931904.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand nine hundred four

Notation

Scientific notation 2.8931904 × 10^7
Engineering notation 2.8931904 × 10^6

Prime Factorization of 28931904

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 9 × 9 × 5581

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 100458
Product of the distinct prime numbers

The prime factorization of 28931904 is 2 × 2 × 2 × 2 × 2 × 2 × 9 × 9 × 5581. Since it has a total of 9 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931904)

Multiplication

n×y
n×2 57863808
n×3 86795712
n×4 115727616
n×5 144659520

Division

n÷y
n÷2 14465952
n÷3 9643968
n÷3 7232976
n÷5 5786380.8

Exponentiation

ny
n2 837055069065216
n3 2.4217596900908E+22
n4 7.0066118864777E+29
n5 2.0271462246483E+37

Nth Root

y√n
2√n 5378.8385363385
3√n 306.99101997804
4√n 73.340565421453
5√n 31.065289348476

Divisors of 28931904

42 divisors

τ Total Divisors 42
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.023809523809524
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 42
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931904 can be divided by 42 positive divisors. The sum of these divisors (counting 28931904) is 1, the average is 0.023809523809524.

Base conversion 28931904

Base System Value
2 Binary 1101110010111011101000000
3 Ternary 2000102220010000
4 Quaternary 1232113131000
5 Quinary 24401310104
6 Senary 2512040000
8 Octal 156273500
10 Decimal 28931904
12 Duodecimal 9833000
16 Hexadecimal 1b97740
20 Vigesimal 90g9f4
36 Base36 h8400

Cryptographic Hash Functions

md5 524fc2dfc74124ac8170c9d1d03a0827
sha1 e80552b494db3c4d2e23eb2e6eafd90b2728f497
sha256 349bfd947ac023c1b717679350949bb880e3b9124271d5762c0b644ef82b6aa5
sha512 462d8b5bec8ba3b3a8f8ab5b4b7460b73aa6323848c72d378d77df0b1e80af354237aceefecac90552ca05045c8caa890cbd4859e934c56771e179762a085502
ripemd-160 55ad35afdd8e09ea0fb0f9ad5625c9084b01c151

28931904 as geometric shapes

Circle

Radius = n
Diameter 57863808
Circumference 181784514.12153
Area 2.6296860556254E+15

Sphere

Radius = n
Volume 1.0144243268199E+23
Surface area 1.0518744222502E+16
Circumference 181784514.12153

Square

Length = n
Perimeter 115727616
Area 837055069065216
Diagonal 40915891.022076

Cube

Length = n
Surface area 5022330414391296
Volume 2.4217596900908E+22
Space diagonal 50111527.687705

Equilateral Triangle

Length = n
Perimeter 86795712
Area 3.6245547708851E+14
Altitude 25055763.843853

Triangular Pyramid

Length = n
Surface area 3.6245547708851E+14
Volume 2.8540711654458E+21
Height 13638630.340692