28139969 is an odd 8-digits composite number following 28139968
and preceding 28139970 . In scientific notation, it is written as 2.8139969 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 22368960 positive integers (up to 28139969) that are relatively prime to 28139969.
28139969 has 8 divisors, whose sum is 29831040
The reverse of 28139969 is 96993182
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million one hundred thirty-nine thousand nine hundred sixty-nine
Scientific notation
2.8139969 × 10^7
Engineering notation
2.8139969 × 10^6
Prime Factorization
143 × 19 × 10357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28139969
Product of the distinct prime numbers
The prime factorization of 28139969 is 143 × 19 × 10357.
Since it has a total of 3 prime factors.
3 , 10 , 23 , 55 , 311 , 174 , 3984 , 396 , 37727 , 10680 , 759186 , 469798 , 2305153 , 9003587 , 77967191 , 75330018 , 859293417 , 331434231 , 9511467260 , 7567705401
n×2
56279938
n×3
84419907
n×4
112559876
n×5
140699845
n÷2
14069984.5
n÷3
9379989.6666667
n÷3
7034992.25
n÷5
5627993.8
n2
791857855320961
n3
2.2282855501138E+22
n4
6.2703886303351E+29
n5
1.7644854167558E+37
2 √n
5304.7119620202
3 √n
304.16404249524
4 √n
72.833453591191
5 √n
30.893329956908
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
-28139968
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 28139969 can be divided by 8 positive divisors.
The sum of these divisors (counting 28139969) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011010110000111000001
3
Ternary
1221221122210002
4
Quaternary
1223112013001
5
Quinary
24200434334
6
Senary
2443045345
8
Octal
153260701
10
Decimal
28139969
12
Duodecimal
9510855
16
Hexadecimal
1ad61c1
20
Vigesimal
8fh9i9
36
Base36
gr4xt
md5
4571035ee58344eabcb6577fd452223f
sha1
8962c4ce4f19607282e14945b11d5222e7314355
sha256
04ef7fc58769f661d44c55d3467730e086d86d2d281cf3e91cdaab6388985298
sha512
2f1ea7d94ae7f5597573c00334f132b5e57ff897c564597ff00a66e0cdaa052285322d56c1fd573c17806c66da9cef8f1f076ff042360914019a6877948c9f37
ripemd-160
e26503788709d87181a155c40b6ad548c8d79bf1
Diameter
56279938
Circumference
176808639.76529
Area
2.4876948209637E+15
Volume
9.3338206857839E+22
Surface area
9.9507792838548E+15
Circumference
176808639.76529
Perimeter
112559876
Area
791857855320961
Diagonal
39795925.804558
Surface area
4751147131925766
Volume
2.2282855501138E+22
Space diagonal
48739856.031413
Perimeter
84419907
Area
3.4288450944711E+14
Altitude
24369928.015707
Surface area
3.4288450944711E+14
Volume
2.6260597048425E+21
Height
13265308.601519