28804981 is an odd 8-digits composite number following 28804980
and preceding 28804982 . In scientific notation, it is written as 2.8804981 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 28026432 positive integers (up to 28804981) that are relatively prime to 28804981.
28804981 has 4 divisors, whose sum is 29583532
The reverse of 28804981 is 18940882
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million eight hundred four thousand nine hundred eighty-one
Scientific notation
2.8804981 × 10^7
Engineering notation
2.8804981 × 10^6
Prime Factorization
37 × 778513
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28804981
Product of the distinct prime numbers
The prime factorization of 28804981 is 37 × 778513.
Since it has a total of 2 prime factors.
8 , 6 , 59 , 45 , 63 , 918 , 1248 , 965 , 53335 , 68969 , 178098 , 362821 , 1675518 , 2952922 , 81494499 , 73155211 , 857575989 , 321485844 , 9483539575 , 4163436342
n×2
57609962
n×3
86414943
n×4
115219924
n×5
144024905
n÷2
14402490.5
n÷3
9601660.3333333
n÷3
7201245.25
n÷5
5760996.2
n2
829726930410361
n3
2.3900268465659E+22
n4
6.884467790482E+29
n5
1.9830696389995E+37
2 √n
5367.0272032104
3 √n
306.54144317618
4 √n
73.259997291908
5 √n
31.037984979434
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28804980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28804981 can be divided by 4 positive divisors.
The sum of these divisors (counting 28804981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101111000011101110101
3
Ternary
2000012110000011
4
Quaternary
1231320131311
5
Quinary
24333224411
6
Senary
2505220221
8
Octal
155703565
10
Decimal
28804981
12
Duodecimal
9791671
16
Hexadecimal
1b78775
20
Vigesimal
900c91
36
Base36
h5e2d
md5
17511fbaf24c5ce835f57172cfb8b878
sha1
d235f7340a9d9060a4473551a8c874a582e2b8b0
sha256
2db368661dcbe9c37ebb04470e0691306c4c3620316ae6cdd75e704b1125ce81
sha512
15fe8930aa92ae51b7a8acf16e67fc301bb1d3d9917dd54ae6ae2165cfb2236a2e236490812d846e64c3bccb8a0e8dcadf23921a7feba8b26854687ddb495ccf
ripemd-160
93e4b3ee06b1de08974d091bbba955c775bee8f8
Diameter
57609962
Circumference
180987033.39279
Area
2.6066640290628E+15
Volume
1.0011321044072E+23
Surface area
1.0426656116251E+16
Circumference
180987033.39279
Perimeter
115219924
Area
829726930410361
Diagonal
40736394.794099
Surface area
4978361582462166
Volume
2.3900268465659E+22
Space diagonal
49891690.603056
Perimeter
86414943
Area
3.5928229996973E+14
Altitude
24945845.301528
Surface area
3.5928229996973E+14
Volume
2.8166736507077E+21
Height
13578798.2647