28981566 is an even 8-digits composite number following 28981565
and preceding 28981567 . In scientific notation, it is written as 2.8981566 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 8915712 positive integers (up to 28981566) that are relatively prime to 28981566.
28981566 has 32 divisors, whose sum is 52138080
The reverse of 28981566 is 66518982
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million nine hundred eighty-one thousand five hundred sixty-six
Scientific notation
2.8981566 × 10^7
Engineering notation
2.8981566 × 10^6
Prime Factorization
2 × 9 × 53 × 17 × 1787
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28981566
Product of the distinct prime numbers
The prime factorization of 28981566 is 2 × 9 × 53 × 17 × 1787.
Since it has a total of 5 prime factors.
2 , 1 , 28 , 19 , 683 , 757 , 1361 , 1830 , 90580 , 95996 , 403922 , 121084 , 3907748 , 1178623 , 37913269 , 21758598 , 129463619 , 856444945 , 5752801478 , 2364144922
n×2
57963132
n×3
86944698
n×4
115926264
n×5
144907830
n÷2
14490783
n÷3
9660522
n÷3
7245391.5
n÷5
5796313.2
n2
839931167812356
n3
2.4342520575411E+22
n4
7.0548436666263E+29
n5
2.0446041734401E+37
2 √n
5383.4529811265
3 √n
307.16657096774
4 √n
73.372017698347
5 √n
31.075946830396
1 , 2 , 9 , 17 , 18 , 34 , 53 , 106 , 153 , 306 , 477 , 901 , 954 , 1787 , 1802 , 3574 , 8109 , 16083 , 16218 , 30379 , 32166 , 60758 , 94711 , 189422 , 273411 , 546822 , 852399 , 1610087 , 1704798 , 3220174 , 14490783 , 28981566
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28981565
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28981566 can be divided by 32 positive divisors.
The sum of these divisors (counting 28981566) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101110100011100100111110
3
Ternary
2000112102020100
4
Quaternary
1232203210332
5
Quinary
24404402231
6
Senary
2513101530
8
Octal
156434476
10
Decimal
28981566
12
Duodecimal
98578a6
16
Hexadecimal
1ba393e
20
Vigesimal
912di6
36
Base36
h96bi
md5
f00eceae44b01b22cdd086e68f836148
sha1
c02db89832048078a84394a266b9609478b81857
sha256
de0467340ff988fd0d3180724c805af59a3a7c6d6c767fc1e8d55e6a353cff55
sha512
336f7be8be7f9e2336d24beadcc0a869cc0ff1d75a34338e8f83fca3467dced3ecb0689e551c1c63612b572872ad0fc46f6045fd01a6dc9d50d5bafa20f392df
ripemd-160
4ac3e6856cd21806b577bd75e6efa539f3e62910
Diameter
57963132
Circumference
182096549.67026
Area
2.6387215863204E+15
Volume
1.0196571174609E+23
Surface area
1.0554886345282E+16
Circumference
182096549.67026
Perimeter
115926264
Area
839931167812356
Diagonal
40986123.696011
Surface area
5039587006874136
Volume
2.4342520575411E+22
Space diagonal
50197544.794911
Perimeter
86944698
Area
3.6370086437792E+14
Altitude
25098772.397455
Surface area
3.6370086437792E+14
Volume
2.8687935616743E+21
Height
13662041.232004