28931239 is an odd 8-digits prime number following 28931238
and preceding 28931240 . In scientific notation, it is written as 2.8931239 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 28931238 positive integers (up to 28931239) that are relatively prime to 28931239.
28931239 has 2 divisors, whose sum is 28931240
The reverse of 28931239 is 93213982
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 37 Digital Root 1
Name
twenty-eight million nine hundred thirty-one thousand two hundred thirty-nine
Scientific notation
2.8931239 × 10^7
Engineering notation
2.8931239 × 10^6
Prime Factorization
28931239
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28931239 Product of the distinct prime numbers
The prime factorization of 28931239 is 28931239.
Since it has a total of 1 prime factors.
7 , 1 , 55 , 93 , 568 , 716 , 4634 , 4595 , 36232 , 98654 , 888009 , 805604 , 2238955 , 6869796 , 95452380 , 98773747 , 307095100 , 370664605 , 1665675407 , 7523405458
n×2
57862478
n×3
86793717
n×4
115724956
n×5
144656195
n÷2
14465619.5
n÷3
9643746.3333333
n÷3
7232809.75
n÷5
5786247.8
n2
837016590075121
n3
2.4215927014428E+22
n4
7.0059677206098E+29
n5
2.0269132655125E+37
2 √n5378.7767196641
3 √n306.98866789649
4 √n73.340143984479
5 √n31.065146539988
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28931240 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14465620 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5378.776812622 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999308706 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931239 can be divided by 2 positive divisors.
The sum of these divisors (counting 28931239) is 28931240, the average is 14465620.
Base
System
Value
2
Binary
1101110010111010010100111
3
Ternary
2000102212012101
4
Quaternary
1232113102213
5
Quinary
24401244424
6
Senary
2512032531
8
Octal
156272247
10
Decimal
28931239
12
Duodecimal
9832747
16
Hexadecimal
1b974a7
20
Vigesimal
90g81j
36
Base36
h83hj
md5
516f0f0becf735618b4c3f82e382b3c5
sha1
4a3b17beae32fb86d16d3d68752a73d72f04c9a9
sha256
0edf74b3ac6c03e48547eced9379107e3b4d0c1e35b5e799c7d8e97640b8250d
sha512
2d73f75d1f80cfbd60fe3ca95d3a312e8c53f25659a9c6b3c461a53feb93d7528d408d7a74e958468e61aad99a857396eda91db28af01afe4b7560d594a927a0
ripemd-160
1b793d6ee9be1ba22f37f66920e8927810f34119
Diameter
57862478
Circumference
181780335.8033
Area
2.6295651703128E+15
Volume
1.0143543787786E+23
Surface area
1.0518260681251E+16
Circumference
181780335.8033
Perimeter
115724956
Area
837016590075121
Diagonal
40914950.570057
Surface area
5022099540450726
Volume
2.4215927014428E+22
Space diagonal
50110375.873918
Perimeter
86793717
Area
3.6243881519704E+14
Altitude
25055187.936959
Surface area
3.6243881519704E+14
Volume
2.8538743674368E+21
Height
13638316.856686