28687623 is an odd 8-digits composite number following 28687622
and preceding 28687624 . In scientific notation, it is written as 2.8687623 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 19125080 positive integers (up to 28687623) that are relatively prime to 28687623.
28687623 has 4 divisors, whose sum is 38250168
The reverse of 28687623 is 32678682
Previous prime number is 3
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 six hundred twenty-three
Scientific notation
2.8687623 × 10^7
Engineering notation
2.8687623 × 10^6
Prime Factorization
3 × 9562541
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28687623
Product of the distinct prime numbers
The prime factorization of 28687623 is 3 × 9562541.
Since it has a total of 2 prime factors.
5 , 3 , 85 , 82 , 244 , 747 , 8613 , 3797 , 9914 , 93403 , 22202 , 202671 , 2215100 , 5267752 , 8048599 , 58028523 , 459906340 , 777705299 , 9473471869 , 1696763729
n×2
57375246
n×3
86062869
n×4
114750492
n×5
143438115
n÷2
14343811.5
n÷3
9562541
n÷3
7171905.75
n÷5
5737524.6
n2
822979713390129
n3
2.3609331754384E+22
n4
6.772956086517E+29
n5
1.9430001080555E+37
2 √n
5356.0828036915
3 √n
306.12457015392
4 √n
73.185263569188
5 √n
31.012652509107
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
-28687622
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 28687623 can be divided by 4 positive divisors.
The sum of these divisors (counting 28687623) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011011110100000111
3
Ternary
1222222111000120
4
Quaternary
1231123310013
5
Quinary
24321000443
6
Senary
2502513023
8
Octal
155336407
10
Decimal
28687623
12
Duodecimal
9735773
16
Hexadecimal
1b5bd07
20
Vigesimal
8j5j13
36
Base36
h2vif
md5
ca3c73b4bebe9df43f9801a9bc527730
sha1
895d7bc0ef30689187ab1c069405cf26abdf9689
sha256
f76bb45b90ebf3ee3a70c034aa66f3459098169e4f87141c6aabc1ba7626a6dd
sha512
101eae823e503d56ef99894e97f91f4a3e975153963c266b2ab91e2cb35b456f76d270199616c935f72f86b1e5b879f32e54371564f8700f4235436071ec868b
ripemd-160
8f54b601b4238826d82c072de7d7caf89fd4cf6f
Diameter
57375246
Circumference
180249651.33151
Area
2.5854670216399E+15
Volume
9.8894537594316E+22
Surface area
1.0341868086559E+16
Circumference
180249651.33151
Perimeter
114750492
Area
822979713390129
Diagonal
40570425.518846
Surface area
4937878280340774
Volume
2.3609331754384E+22
Space diagonal
49688420.584381
Perimeter
86062869
Area
3.5636066929754E+14
Altitude
24844210.292191
Surface area
3.5636066929754E+14
Volume
2.782386430468E+21
Height
13523475.172949