2788428 is an even 7-digits composite number following 2788427
and preceding 2788429 . In scientific notation, it is written as 2.788428 × 10^6.
The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors.
There are 888976 positive integers (up to 2788428) that are relatively prime to 2788428.
2788428 has 24 divisors, whose sum is 6789888
The reverse of 2788428 is 8248872
Previous prime number is 23
Is Prime? no
Number parity even
Number length 7
Sum of Digits 39
Digital Root 3
Name
two million seven hundred eighty-eight thousand four hundred twenty-eight
Scientific notation
2.788428 × 10^6
Engineering notation
2.788428 × 10^6
Prime Factorization
2 × 2 × 3 × 23 × 10103
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1394214
Product of the distinct prime numbers
The prime factorization of 2788428 is 2 × 2 × 3 × 23 × 10103.
Since it has a total of 5 prime factors.
7 , 3 , 33 , 69 , 868 , 893 , 4123 , 6935 , 21510 , 78526 , 727937 , 858121 , 3559286 , 9899771 , 6725995 , 65818600 , 782163703 , 322277982 , 745071161 , 3255257850
n×2
5576856
n×3
8365284
n×4
11153712
n×5
13942140
n÷2
1394214
n÷3
929476
n÷3
697107
n÷5
557685.6
n2
7775330711184
n3
2.1680949864325E+19
n4
6.0455767668281E+25
n5
1.6857655532773E+32
2 √n
1669.858676655
3 √n
140.75153667398
4 √n
40.86390432466
5 √n
19.456821158688
1 , 2 , 3 , 4 , 6 , 12 , 23 , 46 , 69 , 92 , 138 , 276 , 10103 , 20206 , 30309 , 40412 , 60618 , 121236 , 232369 , 464738 , 697107 , 929476 , 1394214 , 2788428
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2788427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2788428 can be divided by 24 positive divisors.
The sum of these divisors (counting 2788428) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010101000110001001100
3
Ternary
12020200000010
4
Quaternary
22220301030
5
Quinary
1203212203
6
Senary
135433220
8
Octal
12506114
10
Decimal
2788428
12
Duodecimal
b25810
16
Hexadecimal
2a8c4c
20
Vigesimal
h8b18
36
Base36
1nrkc
md5
4818b0406812ec05bf538d4eb29ea8a8
sha1
e2c76d74517cd6c3ad2d0fdb226f878fe7fa73f5
sha256
c9e33c8118d96156d63368a8f0bf6c6172507187e3e83fc3f1947dd644761ce3
sha512
5555c352d9945ec9a12734482ee3e902f1f40d6b208315594622906442f0120fc257220232c5291ff912b88bb6d64f886718dc49ec120e1ec208a1ba18f35442
ripemd-160
bfa0bb9e43eaf4c99b9d1fd313c51b157bd8cfeb
Diameter
5576856
Circumference
17520209.839728
Area
24426921841487
Volume
9.0816950422151E+19
Surface area
97707687365947
Circumference
17520209.839728
Perimeter
11153712
Area
7775330711184
Diagonal
3943432.6953009
Surface area
46651984267104
Volume
2.1680949864325E+19
Space diagonal
4829698.9692477
Perimeter
8365284
Area
3366816959355.3
Altitude
2414849.4846238
Surface area
3366816959355.3
Volume
2.5551244452717E+18
Height
1314477.5651003