28782013 is an odd 8-digits composite number following 28782012
and preceding 28782014 . In scientific notation, it is written as 2.8782013 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 26568000 positive integers (up to 28782013) that are relatively prime to 28782013.
28782013 has 4 divisors, whose sum is 30996028
The reverse of 28782013 is 31028782
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million seven hundred eighty-two thousand thirteen
Scientific notation
2.8782013 × 10^7
Engineering notation
2.8782013 × 10^6
Prime Factorization
13 × 2214001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28782013
Product of the distinct prime numbers
The prime factorization of 28782013 is 13 × 2214001.
Since it has a total of 2 prime factors.
5 , 10 , 67 , 86 , 15 , 254 , 1690 , 258 , 10509 , 77116 , 337618 , 910924 , 5930461 , 9648968 , 59734359 , 72990660 , 596076100 , 189712141 , 6366165237 , 9835652995
n×2
57564026
n×3
86346039
n×4
115128052
n×5
143910065
n÷2
14391006.5
n÷3
9594004.3333333
n÷3
7195503.25
n÷5
5756402.6
n2
828404272332169
n3
2.384314253552E+22
n4
6.8625363841819E+29
n5
1.975176114225E+37
2 √n
5364.8870444773
3 √n
306.45994666915
4 √n
73.245389236984
5 √n
31.03303369745
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28782012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28782013 can be divided by 4 positive divisors.
The sum of these divisors (counting 28782013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101110010110110111101
3
Ternary
2000011021111111
4
Quaternary
1231302312331
5
Quinary
24332011023
6
Senary
2504522021
8
Octal
155626675
10
Decimal
28782013
12
Duodecimal
9780311
16
Hexadecimal
1b72dbd
20
Vigesimal
8jhf0d
36
Base36
h4wcd
md5
11d930e087411fcc530fa2a280fc454c
sha1
a050fba84d1be069f792c244256e62f654889a26
sha256
54f0488571092738aedf04648a94fa6c4fb4310cf7f419e6d852da43a3678631
sha512
6c971e61b1cd42a300d555a49a1379d41b4bfdb5c316e70548f37062374668e1b5ee3b44255a02a6a50967e456b0ace44108a9212e225f423b47a6f9cc2b1b08
ripemd-160
5f6d05a7c735305ff96517f338a540c9b8181bfa
Diameter
57564026
Circumference
180842721.19265
Area
2.6025087761611E+15
Volume
9.9873921904112E+22
Surface area
1.0410035104645E+16
Circumference
180842721.19265
Perimeter
115128052
Area
828404272332169
Diagonal
40703913.136999
Surface area
4970425633993014
Volume
2.384314253552E+22
Space diagonal
49851908.860108
Perimeter
86346039
Area
3.5870957222161E+14
Altitude
24925954.430054
Surface area
3.5870957222161E+14
Volume
2.8099412952773E+21
Height
13567971.045666