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.
28931181 has 16 divisors, whose sum is 39528000
The reverse of 28931181 is 18113982
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million nine hundred thirty-one thousand one hundred eighty-one
Scientific notation
2.8931181 × 10^7
Engineering notation
2.8931181 × 10^6
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.
9 , 3 , 66 , 13 , 150 , 86 , 2579 , 2569 , 67406 , 54253 , 28217 , 918643 , 4888419 , 7382829 , 16675708 , 2002828 , 390447918 , 425983649 , 3451086558 , 7386744384
n×2
57862362
n×3
86793543
n×4
115724724
n×5
144655905
n÷2
14465590.5
n÷3
9643727
n÷3
7232795.25
n÷5
5786236.2
n2
837013234054761
n3
2.4215781373834E+22
n4
7.0059115398281E+29
n5
2.0268929482876E+37
2 √n
5378.7713281009
3 √n
306.98846275083
4 √n
73.340107227225
5 √n
31.065134084386
1 , 3 , 59 , 149 , 177 , 447 , 1097 , 3291 , 8791 , 26373 , 64723 , 163453 , 194169 , 490359 , 9643727 , 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
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
md5
1d68f0ab7edef162843db70b880de1d7
sha1
2c6d3b0d0722ac021ce80642d57e437a9e0181a0
sha256
4c08a2a654d2986eed5b327115146845499a7f2b92ede59f8b793a909a503c23
sha512
c4cc62453dc10df414ba0093c7e6582fdecd7a8f3069d43bb9751da4f96f0141c8f7176f12d321143a6aba4b1bc8ea9779bd5f4e2937a36a525573e99db89fad
ripemd-160
3444d3863f12774ef39e43aefd03af421223581a
Diameter
57862362
Circumference
181779971.37855
Area
2.6295546270639E+15
Volume
1.0143482781996E+23
Surface area
1.0518218508255E+16
Circumference
181779971.37855
Perimeter
115724724
Area
837013234054761
Diagonal
40914868.545671
Surface area
5022079404328566
Volume
2.4215781373834E+22
Space diagonal
50110275.414971
Perimeter
86793543
Area
3.624373619976E+14
Altitude
25055137.707486
Surface area
3.624373619976E+14
Volume
2.8538572035281E+21
Height
13638289.515224