28931515 is an odd 8-digits composite number following 28931514
and preceding 28931516 . In scientific notation, it is written as 2.8931515 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 23052000 positive integers (up to 28931515) that are relatively prime to 28931515.
28931515 has 8 divisors, whose sum is 34857648
The reverse of 28931515 is 51513982
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million nine hundred thirty-one thousand five hundred fifteen
Scientific notation
2.8931515 × 10^7
Engineering notation
2.8931515 × 10^6
Prime Factorization
5 × 251 × 23053
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931515
Product of the distinct prime numbers
The prime factorization of 28931515 is 5 × 251 × 23053.
Since it has a total of 3 prime factors.
5 , 1 , 36 , 56 , 737 , 765 , 3866 , 7369 , 36401 , 72044 , 892570 , 75001 , 6549708 , 6587284 , 64665301 , 74105548 , 465561938 , 911198632 , 5332543349 , 9565675084
n×2
57863030
n×3
86794545
n×4
115726060
n×5
144657575
n÷2
14465757.5
n÷3
9643838.3333333
n÷3
7232878.75
n÷5
5786303
n2
837032560195225
n3
2.4216620070777E+22
n4
7.0062350682697E+29
n5
2.0270099497117E+37
2 √n
5378.8023759941
3 √n
306.98964410313
4 √n
73.340318897549
5 √n
31.065205811198
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
-28931514
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 28931515 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111010110111011
3
Ternary
2000102212120121
4
Quaternary
1232113112323
5
Quinary
24401302030
6
Senary
2512034111
8
Octal
156272673
10
Decimal
28931515
12
Duodecimal
9832937
16
Hexadecimal
1b975bb
20
Vigesimal
90g8ff
36
Base36
h83p7
md5
48fc5458dfef1931425759dad3821165
sha1
0b31b34a43ba42c8182ed3e9456a7cfc1ad657f1
sha256
43f18b35c3962c1a26f57191fd65637ee68a0f0a93cd05928c7235c1b51b2d88
sha512
e298adfe43e6649a4e35e67eb4a959c3187595d5f4b9e2a0b39d675daf51f5066acc5cec72f7f4c4ef53e845c1ffd6d633385fdc182be02d1c34bd61179f8b4c
ripemd-160
7d3e7e39468320948683557bbaf8d966a9131854
Diameter
57863030
Circumference
181782069.96245
Area
2.6296153419248E+15
Volume
1.014383409455E+23
Surface area
1.0518461367699E+16
Circumference
181782069.96245
Perimeter
115726060
Area
837032560195225
Diagonal
40915340.893001
Surface area
5022195361171350
Volume
2.4216620070777E+22
Space diagonal
50110853.919941
Perimeter
86794545
Area
3.624457304619E+14
Altitude
25055426.959971
Surface area
3.624457304619E+14
Volume
2.8539560449107E+21
Height
13638446.964334