28002021 is an odd 8-digits composite number following 28002020
and preceding 28002022 . In scientific notation, it is written as 2.8002021 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 17967600 positive integers (up to 28002021) that are relatively prime to 28002021.
28002021 has 8 divisors, whose sum is 28457184
The reverse of 28002021 is 12020082
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-eight million two thousand twenty-one
Scientific notation
2.8002021 × 10^7
Engineering notation
2.8002021 × 10^6
Prime Factorization
93 × 211 × 1427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28002021
Product of the distinct prime numbers
The prime factorization of 28002021 is 93 × 211 × 1427.
Since it has a total of 3 prime factors.
5 , 6 , 95 , 58 , 64 , 381 , 7785 , 9977 , 28633 , 12023 , 462526 , 606840 , 1601403 , 4939995 , 24325305 , 59612870 , 879463705 , 126460590 , 2412414711 , 1388008199
n×2
56004042
n×3
84006063
n×4
112008084
n×5
140010105
n÷2
14001010.5
n÷3
9334007
n÷3
7000505.25
n÷5
5600404.2
n2
784113180084441
n3
2.1956753735101E+22
n4
6.1483347918213E+29
n5
1.7216579995561E+37
2 √n
5291.6935852334
3 √n
303.66620290026
4 √n
72.744027832073
5 √n
30.862981278205
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
-28002020
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 28002021 can be divided by 8 positive divisors.
The sum of these divisors (counting 28002021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110100011011100101
3
Ternary
1221200122112220
4
Quaternary
1222310123211
5
Quinary
24132031041
6
Senary
2440102553
8
Octal
152643345
10
Decimal
28002021
12
Duodecimal
9464a59
16
Hexadecimal
1ab46e5
20
Vigesimal
8f0511
36
Base36
go6hx
md5
974a3815231ae9f71a83616707d96685
sha1
3285685543e555e2675f7635551de3d0fa0fb07f
sha256
52eb74a5b211e4ccdef36c7598803fc09185707324b55844036faee5a6120a66
sha512
22922f4ddb75f92ff9dbc5961c10be315e797016a95cb1ab93331b00d8aee7bf0acf921559f4bea8c2673d507d12d2372d12069bbbf6644278affa60c285f3b0
ripemd-160
88d05f8005704500f55b0d4bfde4aaab32b6450f
Diameter
56004042
Circumference
175941886.91853
Area
2.4633642061362E+15
Volume
9.1972234974499E+22
Surface area
9.8534568245448E+15
Circumference
175941886.91853
Perimeter
112008084
Area
784113180084441
Diagonal
39600837.872056
Surface area
4704679080506646
Volume
2.1956753735101E+22
Space diagonal
48500923.086611
Perimeter
84006063
Area
3.3953096669766E+14
Altitude
24250461.543305
Surface area
3.3953096669766E+14
Volume
2.5876282431555E+21
Height
13200279.290685