28492891 is an odd 8-digits composite number following 28492890
and preceding 28492892 . In scientific notation, it is written as 2.8492891 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 24397440 positive integers (up to 28492891) that are relatively prime to 28492891.
28492891 has 8 divisors, whose sum is 32596704
The reverse of 28492891 is 19829482
Previous prime number is 2621
Is Prime? no Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-eight million four hundred ninety-two thousand eight hundred ninety-one
Scientific notation
2.8492891 × 10^7
Engineering notation
2.8492891 × 10^6
Prime Factorization
7 × 2621 × 1553
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
28492891 Product of the distinct prime numbers
The prime factorization of 28492891 is 7 × 2621 × 1553.
Since it has a total of 3 prime factors.
8 , 1 , 26 , 94 , 250 , 179 , 6199 , 9100 , 31556 , 40646 , 222412 , 881407 , 8737115 , 9518222 , 31298303 , 83938416 , 178512910 , 343683087 , 4050528554 , 3272630355
n×2
56985782
n×3
85478673
n×4
113971564
n×5
142464455
n÷2
14246445.5
n÷3
9497630.3333333
n÷3
7123222.75
n÷5
5698578.2
n2
811844837537881
n3
2.313180646488E+22
n4
6.5909204023691E+29
n5
1.8779437661438E+37
2 √n5337.8732656368
3 √n305.43033761902
4 √n73.06075051378
5 √n30.970434856551
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
-28492890 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 28492891 can be divided by 8 positive divisors.
The sum of these divisors (counting 28492891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100101100010001011011
3
Ternary
1222121120220021
4
Quaternary
1230230101123
5
Quinary
24243233031
6
Senary
2454411311
8
Octal
154542133
10
Decimal
28492891
12
Duodecimal
9660b37
16
Hexadecimal
1b2c45b
20
Vigesimal
8i1c4b
36
Base36
gyp97
md5
48121c7870ab510e559027e25465f97b
sha1
3506c3d6b70d6de87b15cfaff61972f56ae93e85
sha256
202b2e00721b77f6290ba5bd6f95e418d62c354a26371f4a93e9b38c30d06452
sha512
346dd341b4c95c30f3a4ee4efdad31936f170b18cd07916ee3cc1d99ba5794a12a5ee6e15a70f1f12b0352c0ee223343e9d6120dde0cfb6368d16ee64087450c
ripemd-160
3aa593932a65bc9f14d0c356adb0ba26ad36e247
Diameter
56985782
Circumference
179026114.09027
Area
2.5504857774638E+15
Volume
9.6894284339102E+22
Surface area
1.0201943109855E+16
Circumference
179026114.09027
Perimeter
113971564
Area
811844837537881
Diagonal
40295032.883418
Surface area
4871069025227286
Volume
2.313180646488E+22
Space diagonal
49351134.866522
Perimeter
85478673
Area
3.5153912661953E+14
Altitude
24675567.433261
Surface area
3.5153912661953E+14
Volume
2.7261095354019E+21
Height
13431677.627806