28665887 is an odd 8-digits prime number following 28665886
and preceding 28665888 . In scientific notation, it is written as 2.8665887 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 28665886 positive integers (up to 28665887) that are relatively prime to 28665887.
28665887 has 2 divisors, whose sum is 28665888
The reverse of 28665887 is 78856682
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 50 Digital Root 5
Name
twenty-eight million six hundred sixty-five thousand eight hundred eighty-seven
Scientific notation
2.8665887 × 10^7
Engineering notation
2.8665887 × 10^6
Prime Factorization
28665887
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28665887 Product of the distinct prime numbers
The prime factorization of 28665887 is 28665887.
Since it has a total of 1 prime factors.
1 , 2 , 20 , 38 , 154 , 973 , 9405 , 9180 , 61891 , 92774 , 721081 , 258093 , 7483232 , 1411018 , 76313798 , 68618717 , 952192216 , 474647400 , 4311106487 , 3490481253
n×2
57331774
n×3
85997661
n×4
114663548
n×5
143329435
n÷2
14332943.5
n÷3
9555295.6666667
n÷3
7166471.75
n÷5
5733177.4
n2
821733077496769
n3
2.3555707543685E+22
n4
6.7524525065231E+29
n5
1.9356504052486E+37
2 √n5354.0533243516
3 √n306.04723593355
4 √n73.171396900371
5 √n31.007951559115
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28665888 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14332944 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5354.0534177388 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999302307 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28665887 can be divided by 2 positive divisors.
The sum of these divisors (counting 28665887) is 28665888, the average is 14332944.
Base
System
Value
2
Binary
1101101010110100000011111
3
Ternary
1222221101012112
4
Quaternary
1231112200133
5
Quinary
24314302022
6
Senary
2502224235
8
Octal
155264037
10
Decimal
28665887
12
Duodecimal
972507b
16
Hexadecimal
1b5681f
20
Vigesimal
8j34e7
36
Base36
h2eqn
md5
b5ba9e7aa913b51363f4f85d6e69cc6d
sha1
baabe99652b192983becab190d1fbeaf67ead121
sha256
1420fed286b629946ffc0a32bebd66e176996ca4ba31053152ebc73258094fc8
sha512
2a147c565eb79bec271c2f438ca72e7c6cedeefcff29de03b088f618befbd41a7601e6f65301d63ddd2fde8f56ddc3e27162892fa8fe5f536a6a8e9d1d85daae
ripemd-160
ace94281086e581ebd58ee446afb3b2f059c5fd9
Diameter
57331774
Circumference
180113080.01567
Area
2.5815505994756E+15
Volume
9.8669917025799E+22
Surface area
1.0326202397902E+16
Circumference
180113080.01567
Perimeter
114663548
Area
821733077496769
Diagonal
40539686.172855
Surface area
4930398464980614
Volume
2.3555707543685E+22
Space diagonal
49650772.728028
Perimeter
85997661
Area
3.5582086012108E+14
Altitude
24825386.364014
Surface area
3.5582086012108E+14
Volume
2.7760667566311E+21
Height
13513228.724285