28013885 is an odd 8-digits composite number following 28013884
and preceding 28013886 . In scientific notation, it is written as 2.8013885 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 20306880 positive integers (up to 28013885) that are relatively prime to 28013885.
28013885 has 8 divisors, whose sum is 29541888
The reverse of 28013885 is 58831082
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million thirteen thousand eight hundred eighty-five
Scientific notation
2.8013885 × 10^7
Engineering notation
2.8013885 × 10^6
Prime Factorization
95 × 23 × 12821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28013885
Product of the distinct prime numbers
The prime factorization of 28013885 is 95 × 23 × 12821.
Since it has a total of 3 prime factors.
10 , 8 , 41 , 54 , 426 , 5 , 3372 , 363 , 5737 , 75713 , 631145 , 450538 , 8897187 , 641406 , 71137440 , 51739312 , 721353437 , 707308994 , 9695082184 , 7419946047
n×2
56027770
n×3
84041655
n×4
112055540
n×5
140069425
n÷2
14006942.5
n÷3
9337961.6666667
n÷3
7003471.25
n÷5
5602777
n2
784777752793225
n3
2.1984673717308E+22
n4
6.1587612127918E+29
n5
1.7253082835761E+37
2 √n
5292.8144686924
3 √n
303.70908298559
4 √n
72.75173172298
5 √n
30.865596063556
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
-28013884
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 28013885 can be divided by 8 positive divisors.
The sum of these divisors (counting 28013885) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110111010100111101
3
Ternary
1221201020211022
4
Quaternary
1222313110331
5
Quinary
24132421020
6
Senary
2440233525
8
Octal
152672475
10
Decimal
28013885
12
Duodecimal
946b8a5
16
Hexadecimal
1ab753d
20
Vigesimal
8f1ee5
36
Base36
gofnh
md5
1957127db77ea3d9a6d20f55d8681d8d
sha1
7f88664bb1b85a58b33dd7985b2868b7e5adb06a
sha256
f5be07abf660a023d0fa73a5482c482baf725bea4ee5ba02a205cb68a1ce71b6
sha512
e37406b3b231466cc444269b26bb150c9c725d8dc03ac4291f241fa57b2dd933e63c9338e459e0f1e44f0457f012eeba9ea66039cdf582b994438349053d3462
ripemd-160
81e5d396b28d0c6f6f90089fa7cd43dd1188325e
Diameter
56027770
Circumference
176016430.62902
Area
2.4654520228759E+15
Volume
9.2089185922484E+22
Surface area
9.8618080915036E+15
Circumference
176016430.62902
Perimeter
112055540
Area
784777752793225
Diagonal
39617616.10176
Surface area
4708666516759350
Volume
2.1984673717308E+22
Space diagonal
48521472.137392
Perimeter
84041655
Area
3.398187351219E+14
Altitude
24260736.068696
Surface area
3.398187351219E+14
Volume
2.5909186446137E+21
Height
13205872.03392