28978 (number)

28978 is an even 5-digits composite number following 28977 and preceding 28979. In scientific notation, it is written as 2.8978 × 10^4. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 14488 positive integers (up to 28978) that are relatively prime to 28978.

Interesting facts

Basic properties

Name

Name twenty-eight thousand nine hundred seventy-eight

Notation

Scientific notation 2.8978 × 10^4
Engineering notation 2.8978 × 10^3

Prime Factorization of 28978

Prime Factorization 2 × 14489

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28978
Product of the distinct prime numbers

The prime factorization of 28978 is 2 × 14489. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 66, 75, 106, 148, 9535, 4073, 92614, 80856, 831233, 762819, 1677241, 931119, 7477140, 13655611, 120518575, 69322704, 2049414909, 1192154959

Basic calculations (n = 28978)

Multiplication

n×y
n×2 57956
n×3 86934
n×4 115912
n×5 144890

Division

n÷y
n÷2 14489
n÷3 9659.3333333333
n÷3 7244.5
n÷5 5795.6

Exponentiation

ny
n2 839724484
n3 24333536097352
n4 705137209029066256
n5 2.0433466043244E+22

Nth Root

y√n
2√n 170.22925717984
3√n 30.715397214405
4√n 13.047193459892
5√n 7.8057328154788

Divisors of 28978

1, 2, 14489, 28978

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 -28977
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 28978 can be divided by 4 positive divisors. The sum of these divisors (counting 28978) is 1, the average is 0.25.

Base conversion 28978

Base System Value
2 Binary 111000100110010
3 Ternary 1110202021
4 Quaternary 13010302
5 Quinary 1411403
6 Senary 342054
8 Octal 70462
10 Decimal 28978
12 Duodecimal 1492a
16 Hexadecimal 7132
20 Vigesimal 3c8i
36 Base36 mcy

Cryptographic Hash Functions

md5 d1d2b7387785026488d8ffeeea82fb8a
sha1 0f9b652565e7fd3e9ff1b586bc68a34e48990a96
sha256 ac4092b03c8d9e51928a2a4c0877e0aacac81bd75672daee209282bef9c5663b
sha512 48ea8abb01a767ae5ca8a9d60b919230c1985beead5d3a4b977326f3712e1a56ef359d498ea1dd4bdf0d799d0c82219618d64e9a00ff1612db07aacfdbbce3ed
ripemd-160 07298ce1dde2142d36876acca00d0b26ed55b6c8

28978 as geometric shapes

Circle

Radius = n
Diameter 57956
Circumference 182074.14383145
Area 2638072269.9739

Sphere

Radius = n
Volume 1.019280776524E+14
Surface area 10552289079.896
Circumference 182074.14383145

Square

Length = n
Perimeter 115912
Area 839724484
Diagonal 40981.080610448

Cube

Length = n
Surface area 5038346904
Volume 24333536097352
Space diagonal 50191.368301731

Equilateral Triangle

Length = n
Perimeter 86934
Area 363611367.66189
Altitude 25095.684150865

Triangular Pyramid

Length = n
Surface area 363611367.66189
Volume 2867734730780.9
Height 13660.360203483