28809723 is an odd 8-digits composite number following 28809722
and preceding 28809724 . In scientific notation, it is written as 2.8809723 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19206480 positive integers (up to 28809723) that are relatively prime to 28809723.
28809723 has 4 divisors, whose sum is 38412968
The reverse of 28809723 is 32790882
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million eight hundred nine thousand seven hundred twenty-three
Scientific notation
2.8809723 × 10^7
Engineering notation
2.8809723 × 10^6
Prime Factorization
3 × 9603241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28809723
Product of the distinct prime numbers
The prime factorization of 28809723 is 3 × 9603241.
Since it has a total of 2 prime factors.
6 , 7 , 3 , 76 , 934 , 442 , 3345 , 3841 , 24014 , 72272 , 628342 , 126751 , 2270967 , 7014801 , 49895986 , 51717080 , 51080856 , 916424020 , 1091245548 , 7305198271
n×2
57619446
n×3
86429169
n×4
115238892
n×5
144048615
n÷2
14404861.5
n÷3
9603241
n÷3
7202430.75
n÷5
5761944.6
n2
830000139336729
n3
2.3912074104253E+22
n4
6.8890023129899E+29
n5
1.984702483836E+37
2 √n
5367.468956594
3 √n
306.55826364396
4 √n
73.26301219984
5 √n
31.039006833493
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
-28809722
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 28809723 can be divided by 4 positive divisors.
The sum of these divisors (counting 28809723) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101111001100111111011
3
Ternary
2000012200111210
4
Quaternary
1231321213323
5
Quinary
24333402343
6
Senary
2505254203
8
Octal
155714773
10
Decimal
28809723
12
Duodecimal
9794363
16
Hexadecimal
1b799fb
20
Vigesimal
901463
36
Base36
h5hq3
md5
457315055bdf217045445388fd4a4cce
sha1
1dca1b6440ce8d9637e06d959906228bb60d58e1
sha256
ad91d2b87876e5aeaa197aa0a801066952d667baf41bc79403aff2db28ef46b1
sha512
3eba12d4b4c62860c568fb08259e15c81f0a5cb6d514c7cc4b32449f034e15331ab2c5e8673a7f228f2c8df02a770c374041575651f15c0a15b9b124fb042dc9
ripemd-160
24a7957fd8f11fe49b8e22422d4c4fe6db3ce398
Diameter
57619446
Circumference
181016828.25751
Area
2.6075223402188E+15
Volume
1.0016266178402E+23
Surface area
1.0430089360875E+16
Circumference
181016828.25751
Perimeter
115238892
Area
830000139336729
Diagonal
40743100.994812
Surface area
4980000836020374
Volume
2.3912074104253E+22
Space diagonal
49899903.987986
Perimeter
86429169
Area
3.5940060290512E+14
Altitude
24949951.993993
Surface area
3.5940060290512E+14
Volume
2.8180649585587E+21
Height
13581033.664937