28991543 is an odd 8-digits composite number following 28991542
and preceding 28991544 . In scientific notation, it is written as 2.8991543 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 24617016 positive integers (up to 28991543) that are relatively prime to 28991543.
28991543 has 8 divisors, whose sum is 33443712
The reverse of 28991543 is 34519982
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million nine hundred ninety-one thousand five hundred forty-three
Scientific notation
2.8991543 × 10^7
Engineering notation
2.8991543 × 10^6
Prime Factorization
7 × 107 × 38707
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28991543
Product of the distinct prime numbers
The prime factorization of 28991543 is 7 × 107 × 38707.
Since it has a total of 3 prime factors.
1 , 1 , 65 , 1 , 845 , 12 , 3178 , 683 , 66021 , 98150 , 178257 , 175591 , 8410393 , 6969663 , 48066855 , 62903481 , 985518351 , 219011958 , 6727968864 , 9790063102
n×2
57983086
n×3
86974629
n×4
115966172
n×5
144957715
n÷2
14495771.5
n÷3
9663847.6666667
n÷3
7247885.75
n÷5
5798308.6
n2
840509565520849
n3
2.4367669210709E+22
n4
7.0645632973205E+29
n5
2.0481259061049E+37
2 √n
5384.3795371426
3 √n
307.20181462664
4 √n
73.378331523295
5 √n
31.078086135337
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28991542
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28991543 can be divided by 8 positive divisors.
The sum of these divisors (counting 28991543) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100110000000110111
3
Ternary
2000112220220212
4
Quaternary
1232212000313
5
Quinary
24410212133
6
Senary
2513220035
8
Octal
156460067
10
Decimal
28991543
12
Duodecimal
986161b
16
Hexadecimal
1ba6037
20
Vigesimal
913ih3
36
Base36
h9e0n
md5
54437ff28638f9c4dfc17d37128b491f
sha1
fd43212da9d0a3bc4770035704a2990d8df4f572
sha256
3de471b9693cd979808c9eaaaf8d98c44105249b879b975b800d63e6101fb9ee
sha512
77cea8ff690ef2d2a82bd3377a66d4b8621eb604a0cc62efbd310059c037dabd91f0d131ffd469f397aef1599d3b7ad9aaf9507871ea7d7cd3d0326693a73889
ripemd-160
1e4ed877eb871bdee3a4d4b8bfe5b5199d19b9c2
Diameter
57983086
Circumference
182159237.01007
Area
2.6405386763122E+15
Volume
1.0207105410329E+23
Surface area
1.0562154705249E+16
Circumference
182159237.01007
Perimeter
115966172
Area
840509565520849
Diagonal
41000233.304723
Surface area
5043057393125094
Volume
2.4367669210709E+22
Space diagonal
50214825.465818
Perimeter
86974629
Area
3.6395131793244E+14
Altitude
25107412.732909
Surface area
3.6395131793244E+14
Volume
2.8717573567672E+21
Height
13666744.434908