28931213 is an odd 8-digits prime number following 28931212
and preceding 28931214 . In scientific notation, it is written as 2.8931213 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 28931212 positive integers (up to 28931213) that are relatively prime to 28931213.
28931213 has 2 divisors, whose sum is 28931214
The reverse of 28931213 is 31213982
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million nine hundred thirty-one thousand two hundred thirteen
Scientific notation
2.8931213 × 10^7
Engineering notation
2.8931213 × 10^6
Prime Factorization
28931213
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28931213
Product of the distinct prime numbers
The prime factorization of 28931213 is 28931213.
Since it has a total of 1 prime factors.
10 , 1 , 69 , 91 , 80 , 144 , 1941 , 3165 , 74086 , 30706 , 4546 , 534638 , 8152191 , 6599508 , 52063769 , 24572551 , 974232058 , 565404017 , 7812198323 , 4583840242
n×2
57862426
n×3
86793639
n×4
115724852
n×5
144656065
n÷2
14465606.5
n÷3
9643737.6666667
n÷3
7232803.25
n÷5
5786242.6
n2
837015085651369
n3
2.4215861727193E+22
n4
7.0059425360797E+29
n5
2.0269041577708E+37
2 √n
5378.7743027571
3 √n
306.98857593468
4 √n
73.340127507096
5 √n
31.065140956444
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28931214
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14465607
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5378.7743957151
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999308705
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931213 can be divided by 2 positive divisors.
The sum of these divisors (counting 28931213) is 28931214, the average is 14465607.
Base
System
Value
2
Binary
1101110010111010010001101
3
Ternary
2000102212011102
4
Quaternary
1232113102031
5
Quinary
24401244323
6
Senary
2512032445
8
Octal
156272215
10
Decimal
28931213
12
Duodecimal
9832725
16
Hexadecimal
1b9748d
20
Vigesimal
90g80d
36
Base36
h83gt
md5
af7addb4f72be8abd5a52df5b340ad47
sha1
8f7d25c0e2d995e8658919972b57bb92502de5a4
sha256
0a26c0fc56d47e38629d57ecd6d2924dbbd991384fdb86c67c2017908d945d65
sha512
bd76e58e32402bc1ce2ff64d843a4cd8b853afad9df2ebbd4bc640c192a111bb75ead7dac269cb78657ee0e5c6beef66e33c989d07bf74f75d3f17c4e4c1ca79
ripemd-160
0fecb4d031ba64d976f692cac03eea2389ecaf90
Diameter
57862426
Circumference
181780172.44048
Area
2.6295604440262E+15
Volume
1.0143516440333E+23
Surface area
1.0518241776105E+16
Circumference
181780172.44048
Perimeter
115724852
Area
837015085651369
Diagonal
40914913.800505
Surface area
5022090513908214
Volume
2.4215861727193E+22
Space diagonal
50110330.840597
Perimeter
86793639
Area
3.6243816376245E+14
Altitude
25055165.420299
Surface area
3.6243816376245E+14
Volume
2.8538666732623E+21
Height
13638304.600168