28004787 is an odd 8-digits composite number following 28004786
and preceding 28004788 . In scientific notation, it is written as 2.8004787 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 18526560 positive integers (up to 28004787) that are relatively prime to 28004787.
28004787 has 8 divisors, whose sum is 31355280
The reverse of 28004787 is 78740082
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million four thousand seven hundred eighty-seven
Scientific notation
2.8004787 × 10^7
Engineering notation
2.8004787 × 10^6
Prime Factorization
9 × 131 × 23753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28004787
Product of the distinct prime numbers
The prime factorization of 28004787 is 9 × 131 × 23753.
Since it has a total of 3 prime factors.
3 , 2 , 9 , 22 , 647 , 646 , 6384 , 2344 , 90851 , 85182 , 809076 , 287389 , 2568457 , 6484320 , 77923792 , 16067656 , 149706633 , 697829976 , 6986489373 , 5156490835
n×2
56009574
n×3
84014361
n×4
112019148
n×5
140023935
n÷2
14002393.5
n÷3
9334929
n÷3
7001196.75
n÷5
5600957.4
n2
784268094915369
n3
2.1963260949001E+22
n4
6.1507644470218E+29
n5
1.7225084822602E+37
2 √n
5291.9549317809
3 √n
303.67620114364
4 √n
72.745824153561
5 √n
30.863590974437
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
-28004786
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 28004787 can be divided by 8 positive divisors.
The sum of these divisors (counting 28004787) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110101000110110011
3
Ternary
1221200210100100
4
Quaternary
1222311012303
5
Quinary
24132123122
6
Senary
2440123443
8
Octal
152650663
10
Decimal
28004787
12
Duodecimal
9466583
16
Hexadecimal
1ab51b3
20
Vigesimal
8f0bj7
36
Base36
go8mr
md5
f3a6ac08a12da4cec2159c43ad552607
sha1
394db90c6f73a17f3116bcae7aaa4ce4fb0ea977
sha256
9c972bb4d2784588b74e0220c7abcab3512dc06fd81a7821d9c8deafb02536e9
sha512
a8129103c15d998ab289a0181d6f97333cb7a5f2534cf26d05de12bcacfa9f751f6b8cb715f1dd8a4415b55c6efa8511cc5b64ee888783080b83db88d5c31877
ripemd-160
efd5bf9c609eaf9f0e79df56ff96cbaf219224e2
Diameter
56009574
Circumference
175959266.20909
Area
2.463850885431E+15
Volume
9.1999492328342E+22
Surface area
9.8554035417239E+15
Circumference
175959266.20909
Perimeter
112019148
Area
784268094915369
Diagonal
39604749.58677
Surface area
4705608569492214
Volume
2.1963260949001E+22
Space diagonal
48505713.939144
Perimeter
84014361
Area
3.3959804678717E+14
Altitude
24252856.969572
Surface area
3.3959804678717E+14
Volume
2.588395125668E+21
Height
13201583.19559