28017988 is an even 8-digits composite number following 28017987
and preceding 28017989 . In scientific notation, it is written as 2.8017988 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors.
There are 14008992 positive integers (up to 28017988) that are relatively prime to 28017988.
28017988 has 6 divisors, whose sum is 49031486
The reverse of 28017988 is 88971082
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million seventeen thousand nine hundred eighty-eight
Scientific notation
2.8017988 × 10^7
Engineering notation
2.8017988 × 10^6
Prime Factorization
2 × 2 × 7004497
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
14008994
Product of the distinct prime numbers
The prime factorization of 28017988 is 2 × 2 × 7004497.
Since it has a total of 3 prime factors.
9 , 5 , 2 , 7 , 675 , 393 , 4091 , 5658 , 80205 , 41464 , 604883 , 704356 , 7833742 , 2574965 , 99315534 , 59731685 , 428137212 , 870556855 , 2306264496 , 3869318168
n×2
56035976
n×3
84053964
n×4
112071952
n×5
140089940
n÷2
14008994
n÷3
9339329.3333333
n÷3
7004497
n÷5
5603597.6
n2
785007651568144
n3
2.1994334961544E+22
n4
6.1623701302053E+29
n5
1.7265721235965E+37
2 √n
5293.202055467
3 √n
303.72390965144
4 √n
72.754395437437
5 √n
30.866500144671
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28017987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28017988 can be divided by 6 positive divisors.
The sum of these divisors (counting 28017988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101010111000010101000100
3
Ternary
1221201110110021
4
Quaternary
1222320111010
5
Quinary
24133033423
6
Senary
2440304524
8
Octal
152702504
10
Decimal
28017988
12
Duodecimal
9472144
16
Hexadecimal
1ab8544
20
Vigesimal
8f24j8
36
Base36
goitg
md5
deea262462b63c1dd2d14f70d6daab8f
sha1
796bad813f809b1f9b07fb8a07c15f0772860c00
sha256
94e7bbe408024f5c6f1d6e957f8e0021e75295e1cad072d6a9c7555c3345bfcd
sha512
5878782716e77c57acb2a5adf20c91bc4758966534f1b74425b20a7d09c7f4571676b2e0357ac1a2afd95f3f0f6103475fc0efd29ac2a261c55e747aca69ed05
ripemd-160
a67ca049f274ecb587e39cfce285716bfb2ad3af
Diameter
56035976
Circumference
176042210.53833
Area
2.4661742711783E+15
Volume
9.2129654847708E+22
Surface area
9.864697084713E+15
Circumference
176042210.53833
Perimeter
112071952
Area
785007651568144
Diagonal
39623418.620007
Surface area
4710045909408864
Volume
2.1994334961544E+22
Space diagonal
48528578.741855
Perimeter
84053964
Area
3.3991828421159E+14
Altitude
24264289.370928
Surface area
3.3991828421159E+14
Volume
2.5920572331661E+21
Height
13207806.206669