28162581 is an odd 8-digits composite number following 28162580
and preceding 28162582 . In scientific notation, it is written as 2.8162581 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 18775052 positive integers (up to 28162581) that are relatively prime to 28162581.
28162581 has 4 divisors, whose sum is 37550112
The reverse of 28162581 is 18526182
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million one hundred sixty-two thousand five hundred eighty-one
Scientific notation
2.8162581 × 10^7
Engineering notation
2.8162581 × 10^6
Prime Factorization
3 × 9387527
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28162581
Product of the distinct prime numbers
The prime factorization of 28162581 is 3 × 9387527.
Since it has a total of 2 prime factors.
3 , 4 , 72 , 51 , 197 , 50 , 234 , 3504 , 79012 , 82837 , 718532 , 341736 , 5142253 , 5484493 , 77133020 , 36624397 , 678219507 , 569988255 , 1168535899 , 9358463339
n×2
56325162
n×3
84487743
n×4
112650324
n×5
140812905
n÷2
14081290.5
n÷3
9387527
n÷3
7040645.25
n÷5
5632516.2
n2
793130968581561
n3
2.2336615146287E+22
n4
6.2905673332313E+29
n5
1.7715861205808E+37
2 √n
5306.8428467404
3 √n
304.24549148254
4 √n
72.848080597504
5 √n
30.898293256994
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
-28162580
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 28162581 can be divided by 4 positive divisors.
The sum of these divisors (counting 28162581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011101000010101
3
Ternary
1221222210210120
4
Quaternary
1223123220111
5
Quinary
24202200311
6
Senary
2443342153
8
Octal
153335025
10
Decimal
28162581
12
Duodecimal
9521959
16
Hexadecimal
1adba15
20
Vigesimal
8g0691
36
Base36
grmdx
md5
ff4f40c9f24880a5091c3e22ea1c6863
sha1
11b599fb3ce0b2242d84df7649363f800f8efb55
sha256
deb349fdbdd0547fa767fafb27e32e1a2129cbd202252e86cc51c0fd9042781c
sha512
1739ea5e128c65bd1e6678fe27279b717f3134b3844f62229447b2c44a58b414c09c01a6572157fa729938fe49da54b12908da328722bc1685dd718741ce6c3a
ripemd-160
4a4e1467ffe65592ac73f2035d73e592c52a3cfb
Diameter
56325162
Circumference
176950715.15145
Area
2.4916944242304E+15
Volume
9.3563394732849E+22
Surface area
9.9667776969216E+15
Circumference
176950715.15145
Perimeter
112650324
Area
793130968581561
Diagonal
39827904.001631
Surface area
4758785811489366
Volume
2.2336615146287E+22
Space diagonal
48779021.164274
Perimeter
84487743
Area
3.4343578365989E+14
Altitude
24389510.582137
Surface area
3.4343578365989E+14
Volume
2.6323953397822E+21
Height
13275968.000544