28691889 is an odd 8-digits composite number following 28691888
and preceding 28691890 . In scientific notation, it is written as 2.8691889 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 19115280 positive integers (up to 28691889) that are relatively prime to 28691889.
28691889 has 8 divisors, whose sum is 38281152
The reverse of 28691889 is 98819682
Previous prime number is 3821
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty-eight million six hundred ninety-one thousand eight hundred eighty-nine
Scientific notation
2.8691889 × 10^7
Engineering notation
2.8691889 × 10^6
Prime Factorization
3 × 3821 × 2503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28691889
Product of the distinct prime numbers
The prime factorization of 28691889 is 3 × 3821 × 2503.
Since it has a total of 3 prime factors.
6 , 4 , 2 , 69 , 388 , 500 , 6047 , 9412 , 64818 , 60216 , 895727 , 356306 , 9779856 , 1598470 , 51810430 , 10341766 , 83929866 , 832519179 , 6803288104 , 7809008186
n×2
57383778
n×3
86075667
n×4
114767556
n×5
143459445
n÷2
14345944.5
n÷3
9563963
n÷3
7172972.25
n÷5
5738377.8
n2
823224494388321
n3
2.3619865815071E+22
n4
6.7769856816091E+29
n5
1.9444452093132E+37
2 √n
5356.4810276897
3 √n
306.13974351154
4 √n
73.187984175613
5 √n
31.013574803065
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
-28691888
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 28691889 can be divided by 8 positive divisors.
The sum of these divisors (counting 28691889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011100110110110001
3
Ternary
1222222200212120
4
Quaternary
1231130312301
5
Quinary
24321120024
6
Senary
2502544453
8
Octal
155346661
10
Decimal
28691889
12
Duodecimal
9738129
16
Hexadecimal
1b5cdb1
20
Vigesimal
8j69e9
36
Base36
h2ysx
md5
2ea44b6b5e09eca47c4d796ceb137b36
sha1
4e7cf4babc82a7647e21c50c4e6407f7dafaf478
sha256
85092a58204279ad0be65a54a399fb9133abf8e47609bd743129c62cd457a59f
sha512
753b6dca63e043b2f87ba57d6a2f36f5105a640f98bf74213035a22b6af6c59a4de0a120b4996dc159b6be35b2d5bcbe09d71c3b8b795aaeab75836d8f5f1ee8
ripemd-160
ee178c47451cf75404401dc5ef8c4b81228123f1
Diameter
57383778
Circumference
180276455.40003
Area
2.5862360238255E+15
Volume
9.8938662564538E+22
Surface area
1.0344944095302E+16
Circumference
180276455.40003
Perimeter
114767556
Area
823224494388321
Diagonal
40576458.553903
Surface area
4939346966329926
Volume
2.3619865815071E+22
Space diagonal
49695809.513127
Perimeter
86075667
Area
3.5646666257894E+14
Altitude
24847904.756563
Surface area
3.5646666257894E+14
Volume
2.7836278814255E+21
Height
13525486.184634