28578081 is an odd 8-digits composite number following 28578080
and preceding 28578082 . In scientific notation, it is written as 2.8578081 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 16330320 positive integers (up to 28578081) that are relatively prime to 28578081.
28578081 has 8 divisors, whose sum is 43547584
The reverse of 28578081 is 18087582
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million five hundred seventy-eight thousand eighty-one
Scientific notation
2.8578081 × 10^7
Engineering notation
2.8578081 × 10^6
Prime Factorization
3 × 7 × 1360861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28578081
Product of the distinct prime numbers
The prime factorization of 28578081 is 3 × 7 × 1360861.
Since it has a total of 3 prime factors.
7 , 6 , 36 , 29 , 716 , 152 , 8738 , 2270 , 73893 , 90155 , 55958 , 716633 , 2452120 , 2722377 , 44882022 , 29046486 , 683470971 , 875100367 , 2411900804 , 9922752946
n×2
57156162
n×3
85734243
n×4
114312324
n×5
142890405
n÷2
14289040.5
n÷3
9526027
n÷3
7144520.25
n÷5
5715616.2
n2
816706713642561
n3
2.3339910615721E+22
n4
6.6700985610883E+29
n5
1.9061861695677E+37
2 √n
5345.8470797433
3 √n
305.73443360927
4 √n
73.11529990189
5 √n
30.988932253959
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
-28578080
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 28578081 can be divided by 8 positive divisors.
The sum of these divisors (counting 28578081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101000001000100100001
3
Ternary
1222202220202110
4
Quaternary
1231001010201
5
Quinary
24303444311
6
Senary
2500305533
8
Octal
155010441
10
Decimal
28578081
12
Duodecimal
96a22a9
16
Hexadecimal
1b41121
20
Vigesimal
8ic541
36
Base36
h0izl
md5
6fcb9df144fcef2c275d7eac83aad7c7
sha1
cc5cac41c68a2bfb7849bb7f2728def157f87b48
sha256
3a8461ca9d0357ce0818cbc39d059e41c7681027a4cc1f1b27ef3d4e325e4b57
sha512
4f9d2e29a21a5590594cf46ceac25d44fa4efc2fc015a17cdedb6d25311d6bcd49a61fd64bed03e5bf328c56da26af33e2f362bfb1a1786bbba90c2e76e0fe8b
ripemd-160
f7508d2f89382889f60d8f577e1ed5f5502e00df
Diameter
57156162
Circumference
179561378.64659
Area
2.5657598117169E+15
Volume
9.7765988967722E+22
Surface area
1.0263039246868E+16
Circumference
179561378.64659
Perimeter
114312324
Area
816706713642561
Diagonal
40415509.736797
Surface area
4900240281855366
Volume
2.3339910615721E+22
Space diagonal
49498688.274819
Perimeter
85734243
Area
3.5364438072788E+14
Altitude
24749344.137409
Surface area
3.5364438072788E+14
Volume
2.7506348447774E+21
Height
13471836.578932