28931181 (number)

28931181 is an odd 8-digits composite number following 28931180 and preceding 28931182. In scientific notation, it is written as 2.8931181 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 18816128 positive integers (up to 28931181) that are relatively prime to 28931181.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931181 × 10^7
Engineering notation 2.8931181 × 10^6

Prime Factorization of 28931181

Prime Factorization 3 × 149 × 59 × 1097

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931181
Product of the distinct prime numbers

The prime factorization of 28931181 is 3 × 149 × 59 × 1097. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931181)

Multiplication

n×y
n×2 57862362
n×3 86793543
n×4 115724724
n×5 144655905

Division

n÷y
n÷2 14465590.5
n÷3 9643727
n÷3 7232795.25
n÷5 5786236.2

Exponentiation

ny
n2 837013234054761
n3 2.4215781373834E+22
n4 7.0059115398281E+29
n5 2.0268929482876E+37

Nth Root

y√n
2√n 5378.7713281009
3√n 306.98846275083
4√n 73.340107227225
5√n 31.065134084386

Divisors of 28931181

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 -28931180
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 28931181 can be divided by 16 positive divisors. The sum of these divisors (counting 28931181) is 1, the average is 0.0625.

Base conversion 28931181

Base System Value
2 Binary 1101110010111010001101101
3 Ternary 2000102212010020
4 Quaternary 1232113101231
5 Quinary 24401244211
6 Senary 2512032353
8 Octal 156272155
10 Decimal 28931181
12 Duodecimal 98326b9
16 Hexadecimal 1b9746d
20 Vigesimal 90g7j1
36 Base36 h83fx

Cryptographic Hash Functions

md5 1d68f0ab7edef162843db70b880de1d7
sha1 2c6d3b0d0722ac021ce80642d57e437a9e0181a0
sha256 4c08a2a654d2986eed5b327115146845499a7f2b92ede59f8b793a909a503c23
sha512 c4cc62453dc10df414ba0093c7e6582fdecd7a8f3069d43bb9751da4f96f0141c8f7176f12d321143a6aba4b1bc8ea9779bd5f4e2937a36a525573e99db89fad
ripemd-160 3444d3863f12774ef39e43aefd03af421223581a

28931181 as geometric shapes

Circle

Radius = n
Diameter 57862362
Circumference 181779971.37855
Area 2.6295546270639E+15

Sphere

Radius = n
Volume 1.0143482781996E+23
Surface area 1.0518218508255E+16
Circumference 181779971.37855

Square

Length = n
Perimeter 115724724
Area 837013234054761
Diagonal 40914868.545671

Cube

Length = n
Surface area 5022079404328566
Volume 2.4215781373834E+22
Space diagonal 50110275.414971

Equilateral Triangle

Length = n
Perimeter 86793543
Area 3.624373619976E+14
Altitude 25055137.707486

Triangular Pyramid

Length = n
Surface area 3.624373619976E+14
Volume 2.8538572035281E+21
Height 13638289.515224