28002005 is an odd 8-digits composite number following 28002004
and preceding 28002006 . In scientific notation, it is written as 2.8002005 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 22377168 positive integers (up to 28002005) that are relatively prime to 28002005.
28002005 has 8 divisors, whose sum is 33639072
The reverse of 28002005 is 50020082
Previous prime number is 1123
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-eight million two thousand five
Scientific notation
2.8002005 × 10^7
Engineering notation
2.8002005 × 10^6
Prime Factorization
5 × 1123 × 4987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28002005
Product of the distinct prime numbers
The prime factorization of 28002005 is 5 × 1123 × 4987.
Since it has a total of 3 prime factors.
7 , 9 , 24 , 68 , 698 , 391 , 8448 , 8607 , 19408 , 87131 , 720119 , 264970 , 9507908 , 9544448 , 80136548 , 7197869 , 880357023 , 159796066 , 6956665975 , 7537535138
n×2
56004010
n×3
84006015
n×4
112008020
n×5
140010025
n÷2
14001002.5
n÷3
9334001.6666667
n÷3
7000501.25
n÷5
5600401
n2
784112284020025
n3
2.195671609769E+22
n4
6.148320739511E+29
n5
1.7216530808939E+37
2 √n
5291.6920734298
3 √n
303.66614506325
4 √n
72.744017440817
5 √n
30.862977751261
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
-28002004
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 28002005 can be divided by 8 positive divisors.
The sum of these divisors (counting 28002005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110100011011010101
3
Ternary
1221200122112022
4
Quaternary
1222310123111
5
Quinary
24132031010
6
Senary
2440102525
8
Octal
152643325
10
Decimal
28002005
12
Duodecimal
9464a45
16
Hexadecimal
1ab46d5
20
Vigesimal
8f0505
36
Base36
go6hh
md5
aa9ec41abc10912aff7d42ffd7130927
sha1
39388acfb4a7e730bce46e3f1f1aa82cc0678cf9
sha256
f6cba924bb67a803e3d735a02b8ada28f193820decabaf34a37435d4b6b71803
sha512
cddee523be48c1d4e965248e6b7ad1dea8ee20f5e1651cbdebff667f34960a118fd79c07c3cdf7cc5b8a54c45eb321ece2205a169a340071cca30837666a70f6
ripemd-160
6c315361e3d1bf7ef8b924b538c55210a2356dc9
Diameter
56004010
Circumference
175941786.38757
Area
2.4633613910668E+15
Volume
9.197207731928E+22
Surface area
9.8534455642673E+15
Circumference
175941786.38757
Perimeter
112008020
Area
784112284020025
Diagonal
39600815.244639
Surface area
4704673704120150
Volume
2.195671609769E+22
Space diagonal
48500895.373798
Perimeter
84006015
Area
3.3953057869039E+14
Altitude
24250447.686899
Surface area
3.3953057869039E+14
Volume
2.5876238075441E+21
Height
13200271.748213