28688005 is an odd 8-digits composite number following 28688004
and preceding 28688006 . In scientific notation, it is written as 2.8688005 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 21742416 positive integers (up to 28688005) that are relatively prime to 28688005.
28688005 has 8 divisors, whose sum is 36237600
The reverse of 28688005 is 50088682
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million six hundred eighty-eight thousand five
Scientific notation
2.8688005 × 10^7
Engineering notation
2.8688005 × 10^6
Prime Factorization
5 × 19 × 301979
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28688005
Product of the distinct prime numbers
The prime factorization of 28688005 is 5 × 19 × 301979.
Since it has a total of 3 prime factors.
2 , 3 , 41 , 28 , 207 , 448 , 6847 , 9601 , 95601 , 8295 , 629570 , 168096 , 566083 , 804493 , 21473432 , 58948036 , 564466873 , 146818338 , 9581061675 , 9490945589
n×2
57376010
n×3
86064015
n×4
114752020
n×5
143440025
n÷2
14344002.5
n÷3
9562668.3333333
n÷3
7172001.25
n÷5
5737601
n2
823001630880025
n3
2.3610274901694E+22
n4
6.7733168443118E+29
n5
1.943129474962E+37
2 √n
5356.1184639625
3 √n
306.12592891721
4 √n
73.185507198915
5 √n
31.012735100615
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
-28688004
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 28688005 can be divided by 8 positive divisors.
The sum of these divisors (counting 28688005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011111010000101
3
Ternary
1222222111112201
4
Quaternary
1231123322011
5
Quinary
24321004010
6
Senary
2502514501
8
Octal
155337205
10
Decimal
28688005
12
Duodecimal
9735a31
16
Hexadecimal
1b5be85
20
Vigesimal
8j6005
36
Base36
h2vt1
md5
9fce1fc157ae38d6bb0c438c13369db3
sha1
1d01d088697daaf1a191208d0a825abe2525dfa0
sha256
12f22c89ab72a35d71697948c771166fbfd2678ebb868232801819641e2026ed
sha512
ee680f9628e8c6bdde76f242394e9bd9f91c2c62a551cf1c31099c46643a56b9d50fa7f27c8ad94a8eb36ed748617326d8be3dc54fa1923346e2df14da4027da
ripemd-160
3c4790c9aee99104e36596f4e02be9eb6613f663
Diameter
57376010
Circumference
180252051.50829
Area
2.5855358774651E+15
Volume
9.8898488240531E+22
Surface area
1.034214350986E+16
Circumference
180252051.50829
Perimeter
114752020
Area
823001630880025
Diagonal
40570965.748427
Surface area
4938009785280150
Volume
2.3610274901694E+22
Space diagonal
49689082.22779
Perimeter
86064015
Area
3.5637015984906E+14
Altitude
24844541.113895
Surface area
3.5637015984906E+14
Volume
2.7824975814444E+21
Height
13523655.249476