28528081 is an odd 8-digits composite number following 28528080
and preceding 28528082 . In scientific notation, it is written as 2.8528081 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 28473012 positive integers (up to 28528081) that are relatively prime to 28528081.
28528081 has 4 divisors, whose sum is 28583152
The reverse of 28528081 is 18082582
Previous prime number is 523
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million five hundred twenty-eight thousand eighty-one
Scientific notation
2.8528081 × 10^7
Engineering notation
2.8528081 × 10^6
Prime Factorization
523 × 54547
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28528081
Product of the distinct prime numbers
The prime factorization of 28528081 is 523 × 54547.
Since it has a total of 2 prime factors.
9 , 4 , 3 , 60 , 972 , 970 , 6709 , 1713 , 58797 , 23047 , 645547 , 448712 , 6417001 , 6342414 , 46916301 , 44764739 , 349796500 , 893974524 , 8438195658 , 6829762932
n×2
57056162
n×3
85584243
n×4
114112324
n×5
142640405
n÷2
14264040.5
n÷3
9509360.3333333
n÷3
7132020.25
n÷5
5705616.2
n2
813851405542561
n3
2.3217618819282E+22
n4
6.623541103036E+29
n5
1.8895691709424E+37
2 √n
5341.168505112
3 √n
305.55602595091
4 √n
73.083298400606
5 √n
30.978081055709
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
-28528080
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 28528081 can be divided by 4 positive divisors.
The sum of these divisors (counting 28528081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100110100110111010001
3
Ternary
1222200101011121
4
Quaternary
1230310313101
5
Quinary
24300344311
6
Senary
2455242241
8
Octal
154646721
10
Decimal
28528081
12
Duodecimal
9679381
16
Hexadecimal
1b34dd1
20
Vigesimal
8i6041
36
Base36
gzgep
md5
e618b2d3879169c958aca279b4db4d3c
sha1
be846564a57f2f68ce19611d2f3d121602611505
sha256
acff3a9329f0f06a545670152cfc2d2364a0e3e128ca59ff96baff3d31cfecb8
sha512
665fdeeb8f457fc9dd5acf5a5ec33bca6738ef0ae93edc905f05c09ab69157745968266eacbccfb63bc97db2f47a46a3d4f04607124d11e872f0dd2f04b29e74
ripemd-160
6a8a1d0b75d86650b6c3167970db95b9bb67ab7a
Diameter
57056162
Circumference
179247219.38123
Area
2.5567895967662E+15
Volume
9.7253734288673E+22
Surface area
1.0227158387065E+16
Circumference
179247219.38123
Perimeter
114112324
Area
813851405542561
Diagonal
40344799.058678
Surface area
4883108433255366
Volume
2.3217618819282E+22
Space diagonal
49412085.73444
Perimeter
85584243
Area
3.5240799605276E+14
Altitude
24706042.86722
Surface area
3.5240799605276E+14
Volume
2.7362226183531E+21
Height
13448266.352893