28681723 is an odd 8-digits composite number following 28681722
and preceding 28681724 . In scientific notation, it is written as 2.8681723 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 24584328 positive integers (up to 28681723) that are relatively prime to 28681723.
28681723 has 4 divisors, whose sum is 32779120
The reverse of 28681723 is 32718682
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million six hundred eighty-one thousand seven hundred twenty-three
Scientific notation
2.8681723 × 10^7
Engineering notation
2.8681723 × 10^6
Prime Factorization
7 × 4097389
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28681723
Product of the distinct prime numbers
The prime factorization of 28681723 is 7 × 4097389.
Since it has a total of 2 prime factors.
9 , 2 , 42 , 15 , 441 , 128 , 4142 , 1922 , 88414 , 80106 , 370870 , 423487 , 6569781 , 8165313 , 59353245 , 67412638 , 469126934 , 739868102 , 1090973538 , 8972361486
n×2
57363446
n×3
86045169
n×4
114726892
n×5
143408615
n÷2
14340861.5
n÷3
9560574.3333333
n÷3
7170430.75
n÷5
5736344.6
n2
822641234248729
n3
2.35947680091E+22
n4
6.7673860028627E+29
n5
1.9410029076819E+37
2 √n
5355.5319997177
3 √n
306.10358248737
4 √n
73.181500392638
5 √n
31.011376769363
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
-28681722
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 28681723 can be divided by 4 positive divisors.
The sum of these divisors (counting 28681723) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011010010111111011
3
Ternary
1222222011221001
4
Quaternary
1231122113323
5
Quinary
24320303343
6
Senary
2502425431
8
Octal
155322773
10
Decimal
28681723
12
Duodecimal
9732277
16
Hexadecimal
1b5a5fb
20
Vigesimal
8j5463
36
Base36
h2qyj
md5
3edd38043a77cb14817499acd7217a7c
sha1
568dd9d34c8e2c059c11a748a9235c55ce50fc96
sha256
1e6ffde76bc4170aaddb766e9fad98832ef692cebf4722aa2543a24179e6992b
sha512
d447ac972629cccce55d55fa9801c7c8fb0c55d00fd351fea87fc6b144460512e810e27ac5c41d9cd6c8a19232067ace1259aa27817cf7da46f80f1f2c2de635
ripemd-160
ea493449fe115874bf9ca5a463d80e555446126c
Diameter
57363446
Circumference
180212580.53819
Area
2.5844036580558E+15
Volume
9.8833533120726E+22
Surface area
1.0337614632223E+16
Circumference
180212580.53819
Perimeter
114726892
Area
822641234248729
Diagonal
40562081.658828
Surface area
4935847405492374
Volume
2.35947680091E+22
Space diagonal
49678201.484617
Perimeter
86045169
Area
3.5621410352999E+14
Altitude
24839100.742308
Surface area
3.5621410352999E+14
Volume
2.7806700766264E+21
Height
13520693.886276