28490821 is an odd 8-digits prime number following 28490820
and preceding 28490822 . In scientific notation, it is written as 2.8490821 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 28490820 positive integers (up to 28490821) that are relatively prime to 28490821.
28490821 has 2 divisors, whose sum is 28490822
The reverse of 28490821 is 12809482
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million four hundred ninety thousand eight hundred twenty-one
Scientific notation
2.8490821 × 10^7
Engineering notation
2.8490821 × 10^6
Prime Factorization
28490821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28490821
Product of the distinct prime numbers
The prime factorization of 28490821 is 28490821.
Since it has a total of 1 prime factors.
3 , 2 , 79 , 5 , 357 , 69 , 1165 , 8742 , 39660 , 7923 , 457873 , 138562 , 5359257 , 6957467 , 27918599 , 69756207 , 675410693 , 124491950 , 2943442990 , 159108311
n×2
56981642
n×3
85472463
n×4
113963284
n×5
142454105
n÷2
14245410.5
n÷3
9496940.3333333
n÷3
7122705.25
n÷5
5698164.2
n2
811726881254041
n3
2.3126765274697E+22
n4
6.5890052975041E+29
n5
1.8772617049924E+37
2 √n
5337.6793646678
3 √n
305.42294096571
4 √n
73.059423517215
5 √n
30.969984844909
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28490822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14245411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5337.6794583414
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999929802
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28490821 can be divided by 2 positive divisors.
The sum of these divisors (counting 28490821) is 28490822, the average is 14245411.
Base
System
Value
2
Binary
1101100101011110001000101
3
Ternary
1222121111001121
4
Quaternary
1230223301011
5
Quinary
24243201241
6
Senary
2454353541
8
Octal
154536105
10
Decimal
28490821
12
Duodecimal
965b8b1
16
Hexadecimal
1b2bc45
20
Vigesimal
8i1711
36
Base36
gynnp
md5
9fd347171ef2451f7c332311e7f649f0
sha1
fc3ae3ab63296d88f893de1ced75735b3a85fcf7
sha256
6bfab39a94242b3fe76f15edf6ca34005bedb3d6cc2032b1b03f80ff87efa94e
sha512
a92ed7109e86aca67456dbef508c755f808246f487847ad5268a1a5d4684ac7d6483e0e99f05e1c45ff0379eb2d815abac2a5b809f99e2d22b2a95540d5d8b5b
ripemd-160
73a49bf851bbd8bc26aad79304da13c558aecabe
Diameter
56981642
Circumference
179013107.89668
Area
2.550115206869E+15
Volume
9.6873167851045E+22
Surface area
1.0200460827476E+16
Circumference
179013107.89668
Perimeter
113963284
Area
811726881254041
Diagonal
40292105.461344
Surface area
4870361287524246
Volume
2.3126765274697E+22
Space diagonal
49347549.52135
Perimeter
85472463
Area
3.5148805005036E+14
Altitude
24673774.760675
Surface area
3.5148805005036E+14
Volume
2.7255154254413E+21
Height
13430701.820448