28013909 is an odd 8-digits composite number following 28013908
and preceding 28013910 . In scientific notation, it is written as 2.8013909 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20544000 positive integers (up to 28013909) that are relatively prime to 28013909.
28013909 has 8 divisors, whose sum is 30048408
The reverse of 28013909 is 90931082
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million thirteen thousand nine hundred nine
Scientific notation
2.8013909 × 10^7
Engineering notation
2.8013909 × 10^6
Prime Factorization
77 × 17 × 21401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28013909
Product of the distinct prime numbers
The prime factorization of 28013909 is 77 × 17 × 21401.
Since it has a total of 3 prime factors.
6 , 8 , 87 , 97 , 897 , 363 , 73 , 2599 , 92933 , 18877 , 800563 , 13862 , 5925019 , 2896257 , 64390930 , 34777561 , 282567229 , 740382172 , 6773192032 , 8844647184
n×2
56027818
n×3
84041727
n×4
112055636
n×5
140069545
n÷2
14006954.5
n÷3
9337969.6666667
n÷3
7003477.25
n÷5
5602781.8
n2
784779097460281
n3
2.1984730221354E+22
n4
6.1587823181057E+29
n5
1.7253156741022E+37
2 √n
5292.8167359167
3 √n
303.70916971658
4 √n
72.751747304905
5 √n
30.865601352176
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
-28013908
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 28013909 can be divided by 8 positive divisors.
The sum of these divisors (counting 28013909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110111010101010101
3
Ternary
1221201020212012
4
Quaternary
1222313111111
5
Quinary
24132421114
6
Senary
2440234005
8
Octal
152672525
10
Decimal
28013909
12
Duodecimal
946b905
16
Hexadecimal
1ab7555
20
Vigesimal
8f1ef9
36
Base36
gofo5
md5
e1adda72f7ac0eb1ba0a1fb9e5f0b2d8
sha1
1bcc87e5812a55dd6dd9456d4623826abaef4bfa
sha256
11cbbb545b3a2106e44c724cb8306ffc56fa4e1aa141b67b3e05322556e76d14
sha512
5ed9d5445465907560ba28485745216de34ec45ff1586c5f164df5cf3abeaf7844705e3f90654901b858156661282cdbcfdc71844dda5bc22d0da6968291941c
ripemd-160
1cbf314bc6b5e806d75f4f00b53024f5f14c5d7b
Diameter
56027818
Circumference
176016581.42547
Area
2.465456247272E+15
Volume
9.2089422606081E+22
Surface area
9.8618249890882E+15
Circumference
176016581.42547
Perimeter
112055636
Area
784779097460281
Diagonal
39617650.042886
Surface area
4708674584761686
Volume
2.1984730221354E+22
Space diagonal
48521513.706611
Perimeter
84041727
Area
3.3981931737981E+14
Altitude
24260756.853306
Surface area
3.3981931737981E+14
Volume
2.5909253036794E+21
Height
13205883.347629