28138515 is an odd 8-digits composite number following 28138514
and preceding 28138516 . In scientific notation, it is written as 2.8138515 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 15007200 positive integers (up to 28138515) that are relatively prime to 28138515.
28138515 has 8 divisors, whose sum is 45021648
The reverse of 28138515 is 51583182
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million one hundred thirty-eight thousand five hundred fifteen
Scientific notation
2.8138515 × 10^7
Engineering notation
2.8138515 × 10^6
Prime Factorization
3 × 5 × 1875901
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28138515
Product of the distinct prime numbers
The prime factorization of 28138515 is 3 × 5 × 1875901.
Since it has a total of 3 prime factors.
10 , 2 , 86 , 38 , 422 , 525 , 6649 , 2036 , 30878 , 56118 , 441060 , 292519 , 9162222 , 7545846 , 37589646 , 99904439 , 434477137 , 92646837 , 5032808680 , 6497296369
n×2
56277030
n×3
84415545
n×4
112554060
n×5
140692575
n÷2
14069257.5
n÷3
9379505
n÷3
7034628.75
n÷5
5627703
n2
791776026405225
n3
2.2279401595644E+22
n4
6.2690927599005E+29
n5
1.7640296066085E+37
2 √n
5304.5749122809
3 √n
304.15880365821
4 √n
72.832512741776
5 √n
30.893010696924
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
-28138514
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 28138515 can be divided by 8 positive divisors.
The sum of these divisors (counting 28138515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011010101110000010011
3
Ternary
1221221120210020
4
Quaternary
1223111300103
5
Quinary
24200413030
6
Senary
2443034523
8
Octal
153256023
10
Decimal
28138515
12
Duodecimal
950ba43
16
Hexadecimal
1ad5c13
20
Vigesimal
8fh65f
36
Base36
gr3tf
md5
d374adf10c7200aeb9612c3a92ab5473
sha1
43cdd0ea948f66b40acc082de816b8eaf2ffd374
sha256
d5117aec125d7e7fbef6b5ce04bbc12e65162cfbb521799dc88412e5d0a0c5a2
sha512
a26639e7ab1f103f8e7c3fdb8e650151d449ecc958e02ea0b6269e8a32db1564edc79a397d6c2945eb194f2bcd46ba137591f100ed573729c0571e99ad6efaa9
ripemd-160
39b73587441c497fcc5fde82fe4aa4843e70812d
Diameter
56277030
Circumference
176799504.01385
Area
2.4874377478432E+15
Volume
9.3323739172335E+22
Surface area
9.9497509913727E+15
Circumference
176799504.01385
Perimeter
112554060
Area
791776026405225
Diagonal
39793869.538039
Surface area
4750656158431350
Volume
2.2279401595644E+22
Space diagonal
48737337.629539
Perimeter
84415545
Area
3.4284907648721E+14
Altitude
24368668.814769
Surface area
3.4284907648721E+14
Volume
2.6256526581764E+21
Height
13264623.179346