28391311 is an odd 8-digits composite number following 28391310
and preceding 28391312 . In scientific notation, it is written as 2.8391311 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 25567680 positive integers (up to 28391311) that are relatively prime to 28391311.
28391311 has 8 divisors, whose sum is 31321584
The reverse of 28391311 is 11319382
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million three hundred ninety-one thousand three hundred eleven
Scientific notation
2.8391311 × 10^7
Engineering notation
2.8391311 × 10^6
Prime Factorization
13 × 41 × 53267
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28391311
Product of the distinct prime numbers
The prime factorization of 28391311 is 13 × 41 × 53267.
Since it has a total of 3 prime factors.
6 , 1 , 83 , 65 , 454 , 599 , 6049 , 3589 , 21370 , 15970 , 474459 , 257923 , 1976625 , 9252836 , 50248862 , 61305860 , 730552082 , 270428786 , 4745818617 , 3887334679
n×2
56782622
n×3
85173933
n×4
113565244
n×5
141956555
n÷2
14195655.5
n÷3
9463770.3333333
n÷3
7097827.75
n÷5
5678262.2
n2
806066540298721
n3
2.2885285832315E+22
n4
6.4974326738915E+29
n5
1.8447063174602E+37
2 √n
5328.3497445269
3 √n
305.06694221749
4 √n
72.995546059516
5 √n
30.94832076022
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
-28391310
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 28391311 can be divided by 8 positive divisors.
The sum of these divisors (counting 28391311) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010011011110001111
3
Ternary
1222102102120001
4
Quaternary
1230103132033
5
Quinary
24232010221
6
Senary
2452305131
8
Octal
154233617
10
Decimal
28391311
12
Duodecimal
96121a7
16
Hexadecimal
1b1378f
20
Vigesimal
8h8i5b
36
Base36
gwivj
md5
559f5e00f65f430a9b266feac90e2c7c
sha1
0d449c1315946e0fa49dfaa1cda1de4cda4b81dc
sha256
2476cc9190f2e25ec4ee2209e7d43cdda87920d44fa770fa35cde685f5cf4d81
sha512
d38c5496d39f54e2bc385113f8fcdc32875325e0e0216f8e57fb8686adbb45831d62e91eaba3556d6f3dfab0215d1f82430b80805bc2185f8e7e38d092477a3e
ripemd-160
d3b8bf0d8b5cc3fa245fea3c18522e38496f9ec4
Diameter
56782622
Circumference
178387868.12677
Area
2.532332721307E+15
Volume
9.5861661128138E+22
Surface area
1.0129330885228E+16
Circumference
178387868.12677
Perimeter
113565244
Area
806066540298721
Diagonal
40151377.069752
Surface area
4836399241792326
Volume
2.2885285832315E+22
Space diagonal
49175193.145489
Perimeter
85173933
Area
3.4903705051966E+14
Altitude
24587596.572745
Surface area
3.4903705051966E+14
Volume
2.6970568002371E+21
Height
13383792.356584