28691284 (number)

28691284 is an even 8-digits composite number following 28691283 and preceding 28691285. In scientific notation, it is written as 2.8691284 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors. There are 14312088 positive integers (up to 28691284) that are relatively prime to 28691284.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand two hundred eighty-four

Notation

Scientific notation 2.8691284 × 10^7
Engineering notation 2.8691284 × 10^6

Prime Factorization of 28691284

Prime Factorization 2 × 2 × 16339 × 439

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14345642
Product of the distinct prime numbers

The prime factorization of 28691284 is 2 × 2 × 16339 × 439. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 80, 91, 888, 852, 1947, 8980, 74717, 21002, 514909, 456464, 9143951, 9179686, 30137699, 87886431, 508816629, 334295322, 9929607317, 9990853648

Basic calculations (n = 28691284)

Multiplication

n×y
n×2 57382568
n×3 86073852
n×4 114765136
n×5 143456420

Division

n÷y
n÷2 14345642
n÷3 9563761.3333333
n÷3 7172821
n÷5 5738256.8

Exponentiation

ny
n2 823189777568656
n3 2.3618371694119E+22
n4 6.7764140989353E+29
n5 1.9442402141416E+37

Nth Root

y√n
2√n 5356.4245537485
3√n 306.13759173214
4√n 73.1875983603
5√n 31.013444010903

Divisors of 28691284

1, 2, 4, 439, 878, 1756, 16339, 32678, 65356, 7172821, 14345642, 28691284

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28691283
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28691284 can be divided by 12 positive divisors. The sum of these divisors (counting 28691284) is 1, the average is 0.083333333333333.

Base conversion 28691284

Base System Value
2 Binary 1101101011100101101010100
3 Ternary 1222222200001011
4 Quaternary 1231130231110
5 Quinary 24321110114
6 Senary 2502542004
8 Octal 155345524
10 Decimal 28691284
12 Duodecimal 9737904
16 Hexadecimal 1b5cb54
20 Vigesimal 8j6844
36 Base36 h2yc4

Cryptographic Hash Functions

md5 f4eb090e51c4e17457be6f5cabf7b86a
sha1 132d2679d9f0d3095df17b0a628ade8c96f134a4
sha256 a8b78e327e5c170bd13ebb17a750def89006469299537b8f40e8393d7383c2ab
sha512 be6d47ca18e1bf1b8e09d720b451d81853b22734b2e393ff8b838ea46957f4c4076c5715450b7c149ecba79be8921870104b47cb86092559e603bc7e62b8c88e
ripemd-160 204c741314a6845b3a8d0cf912aac3724831e640

28691284 as geometric shapes

Circle

Radius = n
Diameter 57382568
Circumference 180272654.07292
Area 2.5861269577199E+15

Sphere

Radius = n
Volume 9.893240400533E+22
Surface area 1.034450783088E+16
Circumference 180272654.07292

Square

Length = n
Perimeter 114765136
Area 823189777568656
Diagonal 40575602.954698

Cube

Length = n
Surface area 4939138665411936
Volume 2.3618371694119E+22
Space diagonal 49694761.622388

Equilateral Triangle

Length = n
Perimeter 86073852
Area 3.5645162975506E+14
Altitude 24847380.811194

Triangular Pyramid

Length = n
Surface area 3.5645162975506E+14
Volume 2.7834517975827E+21
Height 13525200.984899