28131709 is an odd 8-digits composite number following 28131708
and preceding 28131710 . In scientific notation, it is written as 2.8131709 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 27462000 positive integers (up to 28131709) that are relatively prime to 28131709.
28131709 has 8 divisors, whose sum is 28804608
The reverse of 28131709 is 90713182
Previous prime number is 751
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million one hundred thirty-one thousand seven hundred nine
Scientific notation
2.8131709 × 10^7
Engineering notation
2.8131709 × 10^6
Prime Factorization
47 × 751 × 797
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28131709
Product of the distinct prime numbers
The prime factorization of 28131709 is 47 × 751 × 797.
Since it has a total of 3 prime factors.
2 , 9 , 39 , 1 , 685 , 202 , 5718 , 2810 , 25953 , 9404 , 440897 , 279582 , 7270811 , 4688375 , 46947404 , 20062840 , 211683271 , 523128184 , 6767586252 , 5573222712
n×2
56263418
n×3
84395127
n×4
112526836
n×5
140658545
n÷2
14065854.5
n÷3
9377236.3333333
n÷3
7032927.25
n÷5
5626341.8
n2
791393051260681
n3
2.2263239022688E+22
n4
6.2630296158369E+29
n5
1.7618972661111E+37
2 √n
5303.9333517683
3 √n
304.13427888919
4 √n
72.828108253395
5 √n
30.891516103651
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
-28131708
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 28131709 can be divided by 8 positive divisors.
The sum of these divisors (counting 28131709) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011010100000101111101
3
Ternary
1221221020110011
4
Quaternary
1223110011331
5
Quinary
24200203314
6
Senary
2442543221
8
Octal
153240575
10
Decimal
28131709
12
Duodecimal
9507b11
16
Hexadecimal
1ad417d
20
Vigesimal
8fg959
36
Base36
gqykd
md5
b731e8e4b6b8e2f82b595a4203c22086
sha1
b2f71c3e07e302bb8ee577e94abac61e233a21c9
sha256
73592bfb81070a583a84d82fa3d81be7bf349c891c85e5a22d01fe4cf2311503
sha512
b662b1a1df096beeab7b31ad582ad337b78af171414227c50c1d2e5e5e420eeaace9648155114a5178a5e09fb8ed82eaafa64c723644da109b452b8ec79f8737
ripemd-160
c55e8b6b87809228d4b5525fa2a632e7d7476618
Diameter
56263418
Circumference
176756740.65465
Area
2.4862345959426E+15
Volume
9.3256037545052E+22
Surface area
9.9449383837703E+15
Circumference
176756740.65465
Perimeter
112526836
Area
791393051260681
Diagonal
39784244.400533
Surface area
4748358307564086
Volume
2.2263239022688E+22
Space diagonal
48725549.291743
Perimeter
84395127
Area
3.4268324338512E+14
Altitude
24362774.645871
Surface area
3.4268324338512E+14
Volume
2.6237478806866E+21
Height
13261414.800178