28587685 is an odd 8-digits composite number following 28587684
and preceding 28587686 . In scientific notation, it is written as 2.8587685 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 18570816 positive integers (up to 28587685) that are relatively prime to 28587685.
28587685 has 16 divisors, whose sum is 41270400
The reverse of 28587685 is 58678582
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million five hundred eighty-seven thousand six hundred eighty-five
Scientific notation
2.8587685 × 10^7
Engineering notation
2.8587685 × 10^6
Prime Factorization
5 × 7 × 19 × 42989
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28587685
Product of the distinct prime numbers
The prime factorization of 28587685 is 5 × 7 × 19 × 42989.
Since it has a total of 4 prime factors.
9 , 5 , 56 , 53 , 780 , 570 , 3106 , 2160 , 17199 , 94687 , 943399 , 413340 , 7366251 , 6350013 , 51618352 , 77707898 , 459148970 , 154244554 , 9015523227 , 5716673574
n×2
57175370
n×3
85763055
n×4
114350740
n×5
142938425
n÷2
14293842.5
n÷3
9529228.3333333
n÷3
7146921.25
n÷5
5717537
n2
817255733659225
n3
2.3363449478294E+22
n4
6.6790693419888E+29
n5
1.9093913044193E+37
2 √n
5346.7452716583
3 √n
305.76867832335
4 √n
73.12144194187
5 √n
30.99101481301
1 , 5 , 7 , 19 , 35 , 95 , 133 , 665 , 42989 , 214945 , 300923 , 816791 , 1504615 , 4083955 , 5717537 , 28587685
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28587684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28587685 can be divided by 16 positive divisors.
The sum of these divisors (counting 28587685) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101101000011011010100101
3
Ternary
1222210101221011
4
Quaternary
1231003122211
5
Quinary
24304301220
6
Senary
2500422221
8
Octal
155033245
10
Decimal
28587685
12
Duodecimal
96a7971
16
Hexadecimal
1b436a5
20
Vigesimal
8id945
36
Base36
h0qed
md5
b9ea3ef7528b4837b1e654072a9970a5
sha1
87e7be2078a08a05f49d759e5c2f114c46daca40
sha256
843558501da372ed5af04254f546e141620dbdc8ea88ab52bfd37c552b5f0d6c
sha512
8bf810979481e3da9ecea4e13682af4580e75bce1a8deaec353c95dfb97c89e40a9db37c8c59c6616c862fdeb0a535af0d071d667bc63894962f4260dbcbc0bf
ripemd-160
e718be222873fb51e33a519210fbe23b892d34bf
Diameter
57175370
Circumference
179621722.35828
Area
2.567484608968E+15
Volume
9.7864588324699E+22
Surface area
1.0269938435872E+16
Circumference
179621722.35828
Perimeter
114350740
Area
817255733659225
Diagonal
40429091.84385
Surface area
4903534401955350
Volume
2.3363449478294E+22
Space diagonal
49515322.890775
Perimeter
85763055
Area
3.5388211336869E+14
Altitude
24757661.445387
Surface area
3.5388211336869E+14
Volume
2.7534089263351E+21
Height
13476363.94795