28689871 is an odd 8-digits composite number following 28689870
and preceding 28689872 . In scientific notation, it is written as 2.8689871 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 24174168 positive integers (up to 28689871) that are relatively prime to 28689871.
28689871 has 4 divisors, whose sum is 28759752
The reverse of 28689871 is 17898682
Previous prime number is 413
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million six hundred eighty-nine thousand eight hundred seventy-one
Scientific notation
2.8689871 × 10^7
Engineering notation
2.8689871 × 10^6
Prime Factorization
413 × 69467
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28689871
Product of the distinct prime numbers
The prime factorization of 28689871 is 413 × 69467.
Since it has a total of 2 prime factors.
9 , 8 , 88 , 80 , 981 , 274 , 6539 , 7471 , 46352 , 11489 , 508392 , 753520 , 6356862 , 1011149 , 77281316 , 68173748 , 399055952 , 305437042 , 7545859477 , 5898922276
n×2
57379742
n×3
86069613
n×4
114759484
n×5
143449355
n÷2
14344935.5
n÷3
9563290.3333333
n÷3
7172467.75
n÷5
5737974.2
n2
823108697996641
n3
2.3614882364502E+22
n4
6.7750792871773E+29
n5
1.9437615076389E+37
2 √n
5356.2926544393
3 √n
306.13256605351
4 √n
73.18669725052
5 √n
31.013138532349
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
-28689870
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 28689871 can be divided by 4 positive divisors.
The sum of these divisors (counting 28689871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011100010111001111
3
Ternary
1222222121002211
4
Quaternary
1231130113033
5
Quinary
24321033441
6
Senary
2502531251
8
Octal
155342717
10
Decimal
28689871
12
Duodecimal
9736b27
16
Hexadecimal
1b5c5cf
20
Vigesimal
8j64db
36
Base36
h2x8v
md5
a5aee2640d4cd08a2febd8258ddba4be
sha1
9c4c3173f53288dcfbb01300f47378d22d5f9d71
sha256
7932e2b67f89d61128d3103f35ec654db6e9b4f907669f74f5bc7666a5a24a26
sha512
323adfe2074f668321d08f4f79cbbacf5a2819f773222a2bf57d72946bf8f6c5fe963d4e4607f57adab15e35d9398fe0c7e48b3fca07d8dde6612220ce9fd1fb
ripemd-160
b7f0e54f64feed254ae874cbfd18d99ad5dffb72
Diameter
57379742
Circumference
180263775.93208
Area
2.5858722387321E+15
Volume
9.8917787935607E+22
Surface area
1.0343488954928E+16
Circumference
180263775.93208
Perimeter
114759484
Area
823108697996641
Diagonal
40573604.670935
Surface area
4938652187979846
Volume
2.3614882364502E+22
Space diagonal
49692314.234597
Perimeter
86069613
Area
3.5641652127051E+14
Altitude
24846157.117298
Surface area
3.5641652127051E+14
Volume
2.7830405761436E+21
Height
13524534.890312