28804987 is an odd 8-digits composite number following 28804986
and preceding 28804988 . In scientific notation, it is written as 2.8804987 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 27063552 positive integers (up to 28804987) that are relatively prime to 28804987.
28804987 has 8 divisors, whose sum is 30552336
The reverse of 28804987 is 78940882
Previous prime number is 2153
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-eight million eight hundred four thousand nine hundred eighty-seven
Scientific notation
2.8804987 × 10^7
Engineering notation
2.8804987 × 10^6
Prime Factorization
17 × 2153 × 787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28804987
Product of the distinct prime numbers
The prime factorization of 28804987 is 17 × 2153 × 787.
Since it has a total of 3 prime factors.
2 , 2 , 37 , 5 , 596 , 461 , 2359 , 5509 , 49544 , 18648 , 47143 , 171265 , 9223747 , 3891848 , 69359585 , 38592153 , 670519528 , 137917176 , 7857926740 , 7459133691
n×2
57609974
n×3
86414961
n×4
115219948
n×5
144024935
n÷2
14402493.5
n÷3
9601662.3333333
n÷3
7201246.75
n÷5
5760997.4
n2
829727276070169
n3
2.3900283400747E+22
n4
6.8844735265482E+29
n5
1.9830717043407E+37
2 √n
5367.027762179
3 √n
306.5414644601
4 √n
73.260001106873
5 √n
31.037986272459
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
-28804986
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 28804987 can be divided by 8 positive divisors.
The sum of these divisors (counting 28804987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101111000011101111011
3
Ternary
2000012110000101
4
Quaternary
1231320131323
5
Quinary
24333224422
6
Senary
2505220231
8
Octal
155703573
10
Decimal
28804987
12
Duodecimal
9791677
16
Hexadecimal
1b7877b
20
Vigesimal
900c97
36
Base36
h5e2j
md5
07843f0605a51f142ff9ed16b37cf908
sha1
9a4d5615c146572fb5555f5d9d18aabb8c541e6a
sha256
600833e257d28a924a4e8d48d8db6637b48f5a2c8197d10dc50f979888c6ce29
sha512
258768a6383474e3107a921f93f52b61c96e8c8877a3e9247fba8ffdb02b85999b2c3a7f536b5e414e28ee16927b9b344043cc42f19fb113c33fdc3ba1d014ca
ripemd-160
eab30cc40b55dac2591680a3b2f03032d2c43e3a
Diameter
57609974
Circumference
180987071.0919
Area
2.6066651149851E+15
Volume
1.0011327300067E+23
Surface area
1.042666045994E+16
Circumference
180987071.0919
Perimeter
115219948
Area
829727276070169
Diagonal
40736403.279381
Surface area
4978363656421014
Volume
2.3900283400747E+22
Space diagonal
49891700.995361
Perimeter
86414961
Area
3.5928244964482E+14
Altitude
24945850.497681
Surface area
3.5928244964482E+14
Volume
2.8166754108247E+21
Height
13578801.093127