28687613 is an odd 8-digits composite number following 28687612
and preceding 28687614 . In scientific notation, it is written as 2.8687613 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 28294560 positive integers (up to 28687613) that are relatively prime to 28687613.
28687613 has 4 divisors, whose sum is 29080668
The reverse of 28687613 is 31678682
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million six hundred eighty-seven thousand six hundred thirteen
Scientific notation
2.8687613 × 10^7
Engineering notation
2.8687613 × 10^6
Prime Factorization
73 × 392981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28687613
Product of the distinct prime numbers
The prime factorization of 28687613 is 73 × 392981.
Since it has a total of 2 prime factors.
2 , 10 , 65 , 16 , 437 , 90 , 5655 , 1262 , 24295 , 93045 , 58116 , 999124 , 9852667 , 5237469 , 78629940 , 61365797 , 311255917 , 460188093 , 65193021 , 9989039710
n×2
57375226
n×3
86062839
n×4
114750452
n×5
143438065
n÷2
14343806.5
n÷3
9562537.6666667
n÷3
7171903.25
n÷5
5737522.6
n2
822979139637769
n3
2.3609307065001E+22
n4
6.7729466427892E+29
n5
1.9429967215799E+37
2 √n
5356.0818701734
3 √n
306.12453458404
4 √n
73.185257191414
5 √n
31.012650347014
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28687612
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28687613 can be divided by 4 positive divisors.
The sum of these divisors (counting 28687613) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011011110011111101
3
Ternary
1222222111000012
4
Quaternary
1231123303331
5
Quinary
24321000423
6
Senary
2502513005
8
Octal
155336375
10
Decimal
28687613
12
Duodecimal
9735765
16
Hexadecimal
1b5bcfd
20
Vigesimal
8j5j0d
36
Base36
h2vi5
md5
d7fa77eb546d2fec90ff3eaf33d84e37
sha1
3a6ce345089e05c8d7d47d0cbaa407ba196e1f17
sha256
43d1c6dac4c13112da6cafa7095b32a328555ed3792ecfeb9175050d5f4d4d34
sha512
137b68e9a42e85427f33265114a5464571472178f62c9972e8eb91dd4d93b81be0f169cad02ca9ae2929cf2c633f5d2b327a5a86009615121f26c01121677ef1
ripemd-160
ba72ad281be09dd55858f33a8a39b4a68ba311e1
Diameter
57375226
Circumference
180249588.49965
Area
2.5854652191437E+15
Volume
9.8894434175671E+22
Surface area
1.0341860876575E+16
Circumference
180249588.49965
Perimeter
114750452
Area
822979139637769
Diagonal
40570411.376711
Surface area
4937874837826614
Volume
2.3609307065001E+22
Space diagonal
49688403.263873
Perimeter
86062839
Area
3.5636042085548E+14
Altitude
24844201.631937
Surface area
3.5636042085548E+14
Volume
2.7823835207963E+21
Height
13523470.458904