28931430 (number)

28931430 is an even 8-digits composite number following 28931429 and preceding 28931431. In scientific notation, it is written as 2.8931430 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 7013600 positive integers (up to 28931430) that are relatively prime to 28931430.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931430 × 10^7
Engineering notation 2.8931430 × 10^6

Prime Factorization of 28931430

Prime Factorization 2 × 33 × 5 × 87671

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931430
Product of the distinct prime numbers

The prime factorization of 28931430 is 2 × 33 × 5 × 87671. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 67, 76, 695, 547, 9735, 3735, 90253, 12294, 778882, 707063, 5773599, 9537526, 48507696, 74687932, 792637330, 736515793, 274034443, 4215590376

Basic calculations (n = 28931430)

Multiplication

n×y
n×2 57862860
n×3 86794290
n×4 115725720
n×5 144657150

Division

n÷y
n÷2 14465715
n÷3 9643810
n÷3 7232857.5
n÷5 5786286

Exponentiation

ny
n2 837027641844900
n3 2.4216406628101E+22
n4 7.0061527321243E+29
n5 2.0269801733876E+37

Nth Root

y√n
2√n 5378.7944746012
3√n 306.98934346045
4√n 73.340265029526
5√n 31.065187557431

Divisors of 28931430

1, 2, 5, 10, 33, 66, 165, 330, 87671, 175342, 438355, 876710, 2893143, 5786286, 14465715, 28931430

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 -28931429
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 28931430 can be divided by 16 positive divisors. The sum of these divisors (counting 28931430) is 1, the average is 0.0625.

Base conversion 28931430

Base System Value
2 Binary 1101110010111010101100110
3 Ternary 2000102212110110
4 Quaternary 1232113111212
5 Quinary 24401301210
6 Senary 2512033450
8 Octal 156272546
10 Decimal 28931430
12 Duodecimal 9832886
16 Hexadecimal 1b97566
20 Vigesimal 90g8ba
36 Base36 h83mu

Cryptographic Hash Functions

md5 4f5260e303ab3cfccf624fd393d400cf
sha1 82f83f442e88a44169d8cbfae5cf6be56ccaf5a7
sha256 ab059fa404640bcb4435c303014dd36d6d465910f7a5f48964e84abc289c930a
sha512 7c0c23774537315b14c1787b32e8107d3dd7105e1b77db10c779dacb8e222c64b250c2d1297dfa9f4f3bc04e4016980edbdc04f136db0f91c63af60e491b8bd6
ripemd-160 50ac912c5ae74a37be02b2b18c78182f7eef4e44

28931430 as geometric shapes

Circle

Radius = n
Diameter 57862860
Circumference 181781535.89169
Area 2.6295998904715E+15

Sphere

Radius = n
Volume 1.0143744687891E+23
Surface area 1.0518399561886E+16
Circumference 181781535.89169

Square

Length = n
Perimeter 115725720
Area 837027641844900
Diagonal 40915220.684848

Cube

Length = n
Surface area 5022165851069400
Volume 2.4216406628101E+22
Space diagonal 50110706.695622

Equilateral Triangle

Length = n
Perimeter 86794290
Area 3.6244360075373E+14
Altitude 25055353.347811

Triangular Pyramid

Length = n
Surface area 3.6244360075373E+14
Volume 2.8539308904502E+21
Height 13638406.894949