28931788 (number)

28931788 is an even 8-digits composite number following 28931787 and preceding 28931789. In scientific notation, it is written as 2.8931788 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 6 positive divisors. There are 14465892 positive integers (up to 28931788) that are relatively prime to 28931788.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand seven hundred eighty-eight

Notation

Scientific notation 2.8931788 × 10^7
Engineering notation 2.8931788 × 10^6

Prime Factorization of 28931788

Prime Factorization 2 × 2 × 7232947

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 14465894
Product of the distinct prime numbers

The prime factorization of 28931788 is 2 × 2 × 7232947. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 65, 86, 999, 659, 6226, 2280, 94379, 31373, 152551, 104122, 7648056, 9935188, 65738474, 91247420, 820135857, 714618684, 5078722556, 660317418

Basic calculations (n = 28931788)

Multiplication

n×y
n×2 57863576
n×3 86795364
n×4 115727152
n×5 144658940

Division

n÷y
n÷2 14465894
n÷3 9643929.3333333
n÷3 7232947
n÷5 5786357.6

Exponentiation

ny
n2 837048356876944
n3 2.4217305606912E+22
n4 7.0064995175039E+29
n5 2.0271055866253E+37

Nth Root

y√n
2√n 5378.8277533306
3√n 306.99060969273
4√n 73.340491908158
5√n 31.06526443771

Divisors of 28931788

1, 2, 4, 7232947, 14465894, 28931788

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931787
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931788 can be divided by 6 positive divisors. The sum of these divisors (counting 28931788) is 1, the average is 0.16666666666667.

Base conversion 28931788

Base System Value
2 Binary 1101110010111011011001100
3 Ternary 2000102212221201
4 Quaternary 1232113123030
5 Quinary 24401304123
6 Senary 2512035244
8 Octal 156273314
10 Decimal 28931788
12 Duodecimal 9832b24
16 Hexadecimal 1b976cc
20 Vigesimal 90g998
36 Base36 h83ws

Cryptographic Hash Functions

md5 1df0a5f0ac851dfd1a0b7bfa6c8fa3a2
sha1 f2fc56d01f3be120147f73cb05826c48aaeb500b
sha256 65bfbf6d81d9a9181a1f0b93403243a9d33d0283a285ef9669156619104e5800
sha512 581f28188eece68cb0ad0bb678f2a33dc0dd0f0259c3baedce1c09d7bd4020a5e805c83e27de7a2f6d2b8c12edd2c59b2da32ad2a17b04aeb4d01745d01d40dc
ripemd-160 3247a01108508646523be4257f65c604d53bf24d

28931788 as geometric shapes

Circle

Radius = n
Diameter 57863576
Circumference 181783785.27203
Area 2.629664968664E+15

Sphere

Radius = n
Volume 1.0144121251255E+23
Surface area 1.0518659874656E+16
Circumference 181783785.27203

Square

Length = n
Perimeter 115727152
Area 837048356876944
Diagonal 40915726.973303

Cube

Length = n
Surface area 5022290141261664
Volume 2.4217305606912E+22
Space diagonal 50111326.769812

Equilateral Triangle

Length = n
Perimeter 86795364
Area 3.6245257062573E+14
Altitude 25055663.384906

Triangular Pyramid

Length = n
Surface area 3.6245257062573E+14
Volume 2.8540368361191E+21
Height 13638575.657768