28388618 is an even 8-digits composite number following 28388617
and preceding 28388619 . In scientific notation, it is written as 2.8388618 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 14149216 positive integers (up to 28388618) that are relatively prime to 28388618.
28388618 has 8 divisors, whose sum is 42718212
The reverse of 28388618 is 81688382
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million three hundred eighty-eight thousand six hundred eighteen
Scientific notation
2.8388618 × 10^7
Engineering notation
2.8388618 × 10^6
Prime Factorization
2 × 317 × 44777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28388618
Product of the distinct prime numbers
The prime factorization of 28388618 is 2 × 317 × 44777.
Since it has a total of 3 prime factors.
8 , 2 , 60 , 96 , 288 , 949 , 505 , 9531 , 97630 , 20916 , 262213 , 552864 , 5990855 , 3343638 , 73433846 , 84851926 , 206243523 , 816604398 , 6741793960 , 1530447427
n×2
56777236
n×3
85165854
n×4
113554472
n×5
141943090
n÷2
14194309
n÷3
9462872.6666667
n÷3
7097154.5
n÷5
5677723.6
n2
805913631949924
n3
2.2878774238419E+22
n4
6.4949678216272E+29
n5
1.8438316041047E+37
2 √n
5328.0970336509
3 √n
305.05729641128
4 √n
72.993815036967
5 √n
30.947733629952
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
-28388617
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 28388618 can be divided by 8 positive divisors.
The sum of these divisors (counting 28388618) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010010110100001010
3
Ternary
1222102021212022
4
Quaternary
1230102310022
5
Quinary
24231413433
6
Senary
2452244442
8
Octal
154226412
10
Decimal
28388618
12
Duodecimal
9610722
16
Hexadecimal
1b12d0a
20
Vigesimal
8h8bai
36
Base36
gwgsq
md5
abf7aaaff99ce7911562b56b4d1074ba
sha1
9c15610bf7941590fd5ec10bad869a9078843247
sha256
e54507c3dc66c27fccebcb6598775bcca5decb7d25289e8662359be713727dae
sha512
6e696737c59292cf9d661507f5be481cc4f4af5f387faf3059aff2f978242be0a454f19d41819c0dab8b5860c1dd5eed4f79a17b9ebe1e540e72aa8b479af691
ripemd-160
c2a2f455fd7bc8224e51e19a46789ad0d1ec412a
Diameter
56777236
Circumference
178370947.50873
Area
2.5318523455617E+15
Volume
9.5834385427409E+22
Surface area
1.0127409382247E+16
Circumference
178370947.50873
Perimeter
113554472
Area
805913631949924
Diagonal
40147568.592629
Surface area
4835481791699544
Volume
2.2878774238419E+22
Space diagonal
49170528.732664
Perimeter
85165854
Area
3.4897083926241E+14
Altitude
24585264.366332
Surface area
3.4897083926241E+14
Volume
2.696289401537E+21
Height
13382522.86421