28991208 (number)

28991208 is an even 8-digits composite number following 28991207 and preceding 28991209. In scientific notation, it is written as 2.8991208 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 9639168 positive integers (up to 28991208) that are relatively prime to 28991208.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8991208 × 10^7
Engineering notation 2.8991208 × 10^6

Prime Factorization of 28991208

Prime Factorization 2 × 2 × 2 × 3 × 463 × 2609

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7247802
Product of the distinct prime numbers

The prime factorization of 28991208 is 2 × 2 × 2 × 3 × 463 × 2609. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 5, 77, 25, 37, 298, 6529, 6493, 15729, 83229, 320643, 43984, 7855793, 9332380, 70077620, 13673578, 16238482, 936546720, 5701889036, 3413169578

Basic calculations (n = 28991208)

Multiplication

n×y
n×2 57982416
n×3 86973624
n×4 115964832
n×5 144956040

Division

n÷y
n÷2 14495604
n÷3 9663736
n÷3 7247802
n÷5 5798241.6

Exponentiation

ny
n2 840490141299264
n3 2.4366824508356E+22
n4 7.0642367762126E+29
n5 2.0480075774043E+37

Nth Root

y√n
2√n 5384.3484285473
3√n 307.20063137349
4√n 73.378119549
5√n 31.078014312965

Divisors of 28991208

1, 2, 3, 4, 6, 8, 12, 24, 463, 926, 1389, 1852, 2609, 2778, 3704, 5218, 5556, 7827, 10436, 11112, 15654, 20872, 31308, 62616, 1207967, 2415934, 3623901, 4831868, 7247802, 9663736, 14495604, 28991208

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28991207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28991208 can be divided by 32 positive divisors. The sum of these divisors (counting 28991208) is 1, the average is 0.03125.

Base conversion 28991208

Base System Value
2 Binary 1101110100101111011101000
3 Ternary 2000112220110110
4 Quaternary 1232211323220
5 Quinary 24410204313
6 Senary 2513214320
8 Octal 156457350
10 Decimal 28991208
12 Duodecimal 98613a0
16 Hexadecimal 1ba5ee8
20 Vigesimal 913i08
36 Base36 h9drc

Cryptographic Hash Functions

md5 ab6a7daf6fa905f50b85eb133225272d
sha1 d4cca33413749fee5963b148ecfe6a23ce47065f
sha256 3f31b575c0beb53c9bad32847f87bcb105f9fa745d304e1a2dc0b42ef2878806
sha512 147ca496080d2642a24d7f2d6bc1dae316a5bf1551150c4ec1d0bc790f9076c10f0e0fb21070e4e93de0509c446d6ae22ace7c8aeacd5d93ef50d460e905aa98
ripemd-160 1c7cf75c649c67fd9b922d43dae0e7757984a8d7

28991208 as geometric shapes

Circle

Radius = n
Diameter 57982416
Circumference 182157132.14299
Area 2.6404776533204E+15

Sphere

Radius = n
Volume 1.0206751582235E+23
Surface area 1.0561910613282E+16
Circumference 182157132.14299

Square

Length = n
Perimeter 115964832
Area 840490141299264
Diagonal 40999759.543179

Cube

Length = n
Surface area 5042940847795584
Volume 2.4366824508356E+22
Space diagonal 50214245.228797

Equilateral Triangle

Length = n
Perimeter 86973624
Area 3.6394290699777E+14
Altitude 25107122.614399

Triangular Pyramid

Length = n
Surface area 3.6394290699777E+14
Volume 2.8716578076402E+21
Height 13666586.514393