28490915 is an odd 8-digits composite number following 28490914
and preceding 28490916 . In scientific notation, it is written as 2.8490915 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 22792728 positive integers (up to 28490915) that are relatively prime to 28490915.
28490915 has 4 divisors, whose sum is 34189104
The reverse of 28490915 is 51909482
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million four hundred ninety thousand nine hundred fifteen
Scientific notation
2.8490915 × 10^7
Engineering notation
2.8490915 × 10^6
Prime Factorization
5 × 5698183
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28490915
Product of the distinct prime numbers
The prime factorization of 28490915 is 5 × 5698183.
Since it has a total of 2 prime factors.
2 , 8 , 7 , 67 , 577 , 788 , 1472 , 5317 , 61539 , 68375 , 327474 , 565819 , 9031831 , 1769450 , 28452459 , 47297856 , 871373071 , 685922013 , 8477396540 , 7310875280
n×2
56981830
n×3
85472745
n×4
113963660
n×5
142454575
n÷2
14245457.5
n÷3
9496971.6666667
n÷3
7122728.75
n÷5
5698183
n2
811732237537225
n3
2.3126994182433E+22
n4
6.5890922545719E+29
n5
1.8772926735217E+37
2 √n
5337.6881699852
3 √n
305.42327686014
4 √n
73.059483778529
5 √n
30.970005280788
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
-28490914
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 28490915 can be divided by 4 positive divisors.
The sum of these divisors (counting 28490915) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100101011110010100011
3
Ternary
1222121111012002
4
Quaternary
1230223302203
5
Quinary
24243202130
6
Senary
2454354215
8
Octal
154536243
10
Decimal
28490915
12
Duodecimal
965b96b
16
Hexadecimal
1b2bca3
20
Vigesimal
8i175f
36
Base36
gynqb
md5
1823f3010361da7119924af7af25966c
sha1
74e999789d70d229dd5ec5630a7d1b951fde38ee
sha256
d4c39e7ad3c5b5f281f01222e951b37e20d802677e9e5364e81d6e1effa8eb00
sha512
d10211caf5f776867a7bb63b75d6117a58f46d47d010260d3b71b2c67a56d7e90776befc624c40a6ecf15c0e85e739b12931bb5ab6c398e85f1fb8ee9b47eb69
ripemd-160
27092c710f263dc8cd191da73a176b6e47d5f855
Diameter
56981830
Circumference
179013698.5161
Area
2.550132034129E+15
Volume
9.6874126697527E+22
Surface area
1.0200528136516E+16
Circumference
179013698.5161
Perimeter
113963660
Area
811732237537225
Diagonal
40292238.397419
Surface area
4870393425223350
Volume
2.3126994182433E+22
Space diagonal
49347712.334126
Perimeter
85472745
Area
3.5149036938901E+14
Altitude
24673856.167063
Surface area
3.5149036938901E+14
Volume
2.7255424024767E+21
Height
13430746.132473