28396721 is an odd 8-digits prime number following 28396720
and preceding 28396722 . In scientific notation, it is written as 2.8396721 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 28396720 positive integers (up to 28396721) that are relatively prime to 28396721.
28396721 has 2 divisors, whose sum is 28396722
The reverse of 28396721 is 12769382
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
twenty-eight million three hundred ninety-six thousand seven hundred twenty-one
Scientific notation
2.8396721 × 10^7
Engineering notation
2.8396721 × 10^6
Prime Factorization
28396721
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28396721 Product of the distinct prime numbers
The prime factorization of 28396721 is 28396721.
Since it has a total of 1 prime factors.
9 , 10 , 46 , 37 , 449 , 115 , 7778 , 2903 , 86028 , 35864 , 238067 , 948107 , 7732899 , 8499040 , 350093 , 66264975 , 435163117 , 909843434 , 2598166456 , 5422148877
n×2
56793442
n×3
85190163
n×4
113586884
n×5
141983605
n÷2
14198360.5
n÷3
9465573.6666667
n÷3
7099180.25
n÷5
5679344.2
n2
806373763551841
n3
2.2898370785302E+22
n4
6.5023864654476E+29
n5
1.8464645429349E+37
2 √n5328.8573822162
3 √n305.08631794996
4 √n72.999023159329
5 √n30.949500118617
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28396722 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14198361 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5328.8574760449 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999295693 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28396721 can be divided by 2 positive divisors.
The sum of these divisors (counting 28396721) is 28396722, the average is 14198361.
Base
System
Value
2
Binary
1101100010100110010110001
3
Ternary
1222102200222102
4
Quaternary
1230110302301
5
Quinary
24232143341
6
Senary
2452350145
8
Octal
154246261
10
Decimal
28396721
12
Duodecimal
9615355
16
Hexadecimal
1b14cb1
20
Vigesimal
8h9bg1
36
Base36
gwn1t
md5
abc46fe80846fcc81c65feaacd707c5b
sha1
7c45a8a1e309ac370b06cdbf82d1a4d2a5240ea2
sha256
b65990be4571e39d434576691a2e2a439d85ebff5f0b9ea5065077593409673d
sha512
c98a991fb576b89c86d42990a68df29d76aa279bca9122f95a95bcb7a1b0d83994877cfcc824352d9f93fb8da874ec56dcb712f41b38d6d28ee48830008e81d2
ripemd-160
baa85fae818306c73a092fda87a0edd1451f0951
Diameter
56793442
Circumference
178421860.15928
Area
2.533297891622E+15
Volume
9.5916471251038E+22
Surface area
1.0133191566488E+16
Circumference
178421860.15928
Perimeter
113586884
Area
806373763551841
Diagonal
40159027.965125
Surface area
4838242581311046
Volume
2.2898370785302E+22
Space diagonal
49184563.540358
Perimeter
85190163
Area
3.4917008209058E+14
Altitude
24592281.770179
Surface area
3.4917008209058E+14
Volume
2.6985988767351E+21
Height
13386342.655042