28131839 is an odd 8-digits composite number following 28131838
and preceding 28131840 . In scientific notation, it is written as 2.8131839 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 28118160 positive integers (up to 28131839) that are relatively prime to 28131839.
28131839 has 4 divisors, whose sum is 28145520
The reverse of 28131839 is 93813182
Previous prime number is 11159
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million one hundred thirty-one thousand eight hundred thirty-nine
Scientific notation
2.8131839 × 10^7
Engineering notation
2.8131839 × 10^6
Prime Factorization
11159 × 2521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28131839
Product of the distinct prime numbers
The prime factorization of 28131839 is 11159 × 2521.
Since it has a total of 2 prime factors.
5 , 9 , 33 , 38 , 26 , 945 , 3265 , 1915 , 86227 , 86832 , 456969 , 130068 , 9923235 , 7022775 , 74439155 , 52069823 , 775321386 , 577620767 , 7116610535 , 4270005405
n×2
56263678
n×3
84395517
n×4
112527356
n×5
140659195
n÷2
14065919.5
n÷3
9377279.6666667
n÷3
7032959.75
n÷5
5626367.8
n2
791400365521921
n3
2.2263547667404E+22
n4
6.2631453854823E+29
n5
1.7619379761798E+37
2 √n
5303.9456068101
3 √n
304.13474736879
4 √n
72.828192390105
5 √n
30.891544654278
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
-28131838
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 28131839 can be divided by 4 positive divisors.
The sum of these divisors (counting 28131839) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011010100000111111111
3
Ternary
1221221020121222
4
Quaternary
1223110013333
5
Quinary
24200204324
6
Senary
2442543555
8
Octal
153240777
10
Decimal
28131839
12
Duodecimal
9507bbb
16
Hexadecimal
1ad41ff
20
Vigesimal
8fg9bj
36
Base36
gqynz
md5
39c47a8becaaaf3bddc58aa00e78edf6
sha1
e6f87820668fdc8e931f433a353748ac8597ca73
sha256
d3f1143b5df27e8116b16ae7bafce3fe84c2a54234ccbfa74048bedf489c40c0
sha512
53ffb71b1257c7d9f72ff0cebc6b4ab073880ba4115a57202fc22716ab2a650e10930cbf573687b32126cab078a1facdc6b39c1c4317ff71c8a2e83e9bb22dda
ripemd-160
1a9e9ddf316ec63a4e974709960ad8c5df434fae
Diameter
56263678
Circumference
176757557.46874
Area
2.4862575743719E+15
Volume
9.3257330393016E+22
Surface area
9.9450302974878E+15
Circumference
176757557.46874
Perimeter
112527356
Area
791400365521921
Diagonal
39784428.248296
Surface area
4748402193131526
Volume
2.2263547667404E+22
Space diagonal
48725774.458348
Perimeter
84395517
Area
3.4268641055314E+14
Altitude
24362887.229174
Surface area
3.4268641055314E+14
Volume
2.6237842548152E+21
Height
13261476.082765