28391208 (number)

28391208 is an even 8-digits composite number following 28391207 and preceding 28391209. In scientific notation, it is written as 2.8391208 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors. There are 9463728 positive integers (up to 28391208) that are relatively prime to 28391208.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-one thousand two hundred eight

Notation

Scientific notation 2.8391208 × 10^7
Engineering notation 2.8391208 × 10^6

Prime Factorization of 28391208

Prime Factorization 2 × 2 × 2 × 3 × 1182967

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7097802
Product of the distinct prime numbers

The prime factorization of 28391208 is 2 × 2 × 2 × 3 × 1182967. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 3, 79, 61, 975, 250, 4339, 9693, 35942, 42926, 148980, 102495, 9139457, 374625, 9203390, 70979034, 749648930, 66992190, 9996991754, 3232444442

Basic calculations (n = 28391208)

Multiplication

n×y
n×2 56782416
n×3 85173624
n×4 113564832
n×5 141956040

Division

n÷y
n÷2 14195604
n÷3 9463736
n÷3 7097802
n÷5 5678241.6

Exponentiation

ny
n2 806060691699264
n3 2.2885036758658E+22
n4 6.497338387027E+29
n5 1.8446728559247E+37

Nth Root

y√n
2√n 5328.3400792367
3√n 305.06657330259
4√n 72.995479854829
5√n 30.948298304887

Divisors of 28391208

1, 2, 3, 4, 6, 8, 12, 24, 1182967, 2365934, 3548901, 4731868, 7097802, 9463736, 14195604, 28391208

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28391207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28391208 can be divided by 16 positive divisors. The sum of these divisors (counting 28391208) is 1, the average is 0.0625.

Base conversion 28391208

Base System Value
2 Binary 1101100010011011100101000
3 Ternary 1222102102102020
4 Quaternary 1230103130220
5 Quinary 24232004313
6 Senary 2452304440
8 Octal 154233450
10 Decimal 28391208
12 Duodecimal 9612120
16 Hexadecimal 1b13728
20 Vigesimal 8h8i08
36 Base36 gwiso

Cryptographic Hash Functions

md5 ecf6a76ad34cc3f3bb87e233dcc65378
sha1 d61a26d535155d553b1679659da5c9bda623098d
sha256 018046b7d445c298d11d5e3277454e0684bf286ac1cdfe6d8d3c705a96253e77
sha512 42ad5ad992e6c187e5cf467ae541b74a964eb0376dd0587d2155854a0a22170f9550f3126421bf48d03ef380f9bbd3e4d58b0282475fa1eb4aa34460d4ee854f
ripemd-160 86197a089914ede8c6a9b56dcfe948e2885dd98f

28391208 as geometric shapes

Circle

Radius = n
Diameter 56782416
Circumference 178387220.95868
Area 2.5323143473899E+15

Sphere

Radius = n
Volume 9.5860617810842E+22
Surface area 1.012925738956E+16
Circumference 178387220.95868

Square

Length = n
Perimeter 113564832
Area 806060691699264
Diagonal 40151231.405756

Cube

Length = n
Surface area 4836364150195584
Volume 2.2885036758658E+22
Space diagonal 49175014.744256

Equilateral Triangle

Length = n
Perimeter 85173624
Area 3.4903451800181E+14
Altitude 24587507.372128

Triangular Pyramid

Length = n
Surface area 3.4903451800181E+14
Volume 2.697027446625E+21
Height 13383743.801919