28687047 is an odd 8-digits composite number following 28687046
and preceding 28687048 . In scientific notation, it is written as 2.8687047 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 19111872 positive integers (up to 28687047) that are relatively prime to 28687047.
28687047 has 8 divisors, whose sum is 38275056
The reverse of 28687047 is 74078682
Previous prime number is 4057
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million six hundred eighty-seven thousand forty-seven
Scientific notation
2.8687047 × 10^7
Engineering notation
2.8687047 × 10^6
Prime Factorization
3 × 4057 × 2357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28687047
Product of the distinct prime numbers
The prime factorization of 28687047 is 3 × 4057 × 2357.
Since it has a total of 3 prime factors.
3 , 2 , 18 , 95 , 939 , 624 , 7466 , 2349 , 51933 , 91951 , 204691 , 694839 , 8240855 , 1264097 , 66913042 , 27455184 , 735441983 , 328926746 , 8806672213 , 6919516868
n×2
57374094
n×3
86061141
n×4
114748188
n×5
143435235
n÷2
14343523.5
n÷3
9562349
n÷3
7171761.75
n÷5
5737409.4
n2
822946665580209
n3
2.3607909673993E+22
n4
6.7724121438958E+29
n5
1.9428050547531E+37
2 √n
5356.0290327817
3 √n
306.12252131527
4 √n
73.184896206674
5 √n
31.012527971558
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
-28687046
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 28687047 can be divided by 8 positive divisors.
The sum of these divisors (counting 28687047) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011101011000111
3
Ternary
1222222110020020
4
Quaternary
1231123223013
5
Quinary
24320441142
6
Senary
2502510223
8
Octal
155335307
10
Decimal
28687047
12
Duodecimal
9735373
16
Hexadecimal
1b5bac7
20
Vigesimal
8j5hc7
36
Base36
h2v2f
md5
e5c53e942531367e9e00b37ffaf1c145
sha1
7d98f2ccf58c91e835bd51e212d161a9ec93d95d
sha256
58aca24581eb918efee71fc01dec317a83d66863305935e5251bba683f204175
sha512
3f5b0d53977aa2a026ac33d35eb16ff2c829587f917ce4fe175406bfd4a60025d64f6868208421d1f339740f49b00dbf9fb4f05ef30b6e9c98fd0f983cfac90b
ripemd-160
1a8c9329d8ad0de421953cb664d3703054e686ff
Diameter
57374094
Circumference
180246032.21677
Area
2.585363198883E+15
Volume
9.8888580797903E+22
Surface area
1.0341452795532E+16
Circumference
180246032.21677
Perimeter
114748188
Area
822946665580209
Diagonal
40569610.931834
Surface area
4937679993481254
Volume
2.3607909673993E+22
Space diagonal
49687422.923116
Perimeter
86061141
Area
3.5634635917608E+14
Altitude
24843711.461558
Surface area
3.5634635917608E+14
Volume
2.7822188366866E+21
Height
13523203.643945