28688007 is an odd 8-digits composite number following 28688006
and preceding 28688008 . In scientific notation, it is written as 2.8688007 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19125336 positive integers (up to 28688007) that are relatively prime to 28688007.
28688007 has 4 divisors, whose sum is 38250680
The reverse of 28688007 is 70088682
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million six hundred eighty-eight thousand seven
Scientific notation
2.8688007 × 10^7
Engineering notation
2.8688007 × 10^6
Prime Factorization
3 × 9562669
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28688007
Product of the distinct prime numbers
The prime factorization of 28688007 is 3 × 9562669.
Since it has a total of 2 prime factors.
4 , 4 , 66 , 83 , 400 , 205 , 3323 , 871 , 83514 , 60810 , 238837 , 509742 , 8671141 , 4578872 , 822733 , 27698301 , 970056828 , 71236591 , 6448577852 , 1820078292
n×2
57376014
n×3
86064021
n×4
114752028
n×5
143440035
n÷2
14344003.5
n÷3
9562669
n÷3
7172001.75
n÷5
5737601.4
n2
823001745632049
n3
2.3610279839704E+22
n4
6.773318733134E+29
n5
1.9431301522938E+37
2 √n
5356.1186506649
3 √n
306.12593603112
4 √n
73.185508474457
5 √n
31.012735533028
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
-28688006
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 28688007 can be divided by 4 positive divisors.
The sum of these divisors (counting 28688007) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011011111010000111
3
Ternary
1222222111112210
4
Quaternary
1231123322013
5
Quinary
24321004012
6
Senary
2502514503
8
Octal
155337207
10
Decimal
28688007
12
Duodecimal
9735a33
16
Hexadecimal
1b5be87
20
Vigesimal
8j6007
36
Base36
h2vt3
md5
438fea30b6645f598817af7759627d3f
sha1
0e80694efed5f3257fdb98aca6e69ea6684bcd1a
sha256
c0be9bb468c46e4f9a4fa6fa700b86f6976ae18438a7f678210bad45b4eb1ee6
sha512
6745e2df178a7324cb321c6e9ff8d6f70c3d1fdeb7e017516a262edad862e8ec8e17f872df2b7f32a860ce68858072d91388561c0baecc62051205d1d92d669a
ripemd-160
5a06d93d159fdeb79aa67577c06a80a7acf0bc4e
Diameter
57376014
Circumference
180252064.07467
Area
2.5855362379692E+15
Volume
9.889850892482E+22
Surface area
1.0342144951877E+16
Circumference
180252064.07467
Perimeter
114752028
Area
823001745632049
Diagonal
40570968.576854
Surface area
4938010473792294
Volume
2.3610279839704E+22
Space diagonal
49689085.691892
Perimeter
86064021
Area
3.5637020953815E+14
Altitude
24844542.845946
Surface area
3.5637020953815E+14
Volume
2.7824981633945E+21
Height
13523656.192285