28931311 is an odd 8-digits prime number following 28931310
and preceding 28931312 . In scientific notation, it is written as 2.8931311 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 28931310 positive integers (up to 28931311) that are relatively prime to 28931311.
28931311 has 2 divisors, whose sum is 28931312
The reverse of 28931311 is 11313982
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million nine hundred thirty-one thousand three hundred eleven
Scientific notation
2.8931311 × 10^7
Engineering notation
2.8931311 × 10^6
Prime Factorization
28931311
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28931311
Product of the distinct prime numbers
The prime factorization of 28931311 is 28931311.
Since it has a total of 1 prime factors.
2 , 9 , 73 , 41 , 564 , 856 , 80 , 613 , 9069 , 23846 , 727217 , 755698 , 6297407 , 1398260 , 72651089 , 1601202 , 12529224 , 653193217 , 9648516132 , 4994022225
n×2
57862622
n×3
86793933
n×4
115725244
n×5
144656555
n÷2
14465655.5
n÷3
9643770.3333333
n÷3
7232827.75
n÷5
5786262.2
n2
837020756178721
n3
2.4216107810462E+22
n4
7.00603746274E+29
n5
2.0269384871218E+37
2 √n
5378.7834126315
3 √n
306.98892255969
4 √n
73.340189614096
5 √n
31.065162002086
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28931312
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14465656
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5378.7835055893
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999308707
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931311 can be divided by 2 positive divisors.
The sum of these divisors (counting 28931311) is 28931312, the average is 14465656.
Base
System
Value
2
Binary
1101110010111010011101111
3
Ternary
2000102212022001
4
Quaternary
1232113103233
5
Quinary
24401300221
6
Senary
2512033131
8
Octal
156272357
10
Decimal
28931311
12
Duodecimal
98327a7
16
Hexadecimal
1b974ef
20
Vigesimal
90g85b
36
Base36
h83jj
md5
a740695e23e1d6a60798b3aebc1ff609
sha1
4c67127c14751067ba5a77d795ac7fed2eeae49e
sha256
713868035f43fe2a1ae61d6e985ab736c4764c44fff358d5bf9eecab55dd4cd9
sha512
36997e87512c0b3cfc70197604cce08b60ddf24c5d91c8bf248dfa2bd1f358e69bfc1e74a1b59393e504384b0f4f4164a63e8392a4bfa4b6c73d14c6e25a154c
ripemd-160
0964025f3ea3c798bebf54facd58a3184e579a06
Diameter
57862622
Circumference
181780788.19264
Area
2.6295782585132E+15
Volume
1.0143619519451E+23
Surface area
1.0518313034053E+16
Circumference
181780788.19264
Perimeter
115725244
Area
837020756178721
Diagonal
40915052.393434
Surface area
5022124537072326
Volume
2.4216107810462E+22
Space diagonal
50110500.581576
Perimeter
86793933
Area
3.6244061917282E+14
Altitude
25055250.290788
Surface area
3.6244061917282E+14
Volume
2.8538956744537E+21
Height
13638350.797811