28009009 is an odd 8-digits composite number following 28009008
and preceding 28009010 . In scientific notation, it is written as 2.8009009 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 22963776 positive integers (up to 28009009) that are relatively prime to 28009009.
28009009 has 8 divisors, whose sum is 33402240
The reverse of 28009009 is 90090082
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million nine thousand nine
Scientific notation
2.8009009 × 10^7
Engineering notation
2.8009009 × 10^6
Prime Factorization
7 × 23 × 173969
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28009009
Product of the distinct prime numbers
The prime factorization of 28009009 is 7 × 23 × 173969.
Since it has a total of 3 prime factors.
7 , 5 , 48 , 90 , 183 , 648 , 3922 , 6018 , 98151 , 9632 , 539454 , 994651 , 7870219 , 405685 , 77798442 , 94043037 , 719508879 , 233277783 , 5000730508 , 3182575969
n×2
56018018
n×3
84027027
n×4
112036036
n×5
140045045
n÷2
14004504.5
n÷3
9336336.3333333
n÷3
7002252.25
n÷5
5601801.8
n2
784504585162081
n3
2.1973195986346E+22
n4
6.1544744414033E+29
n5
1.7238073001953E+37
2 √n
5292.3538241505
3 √n
303.69146111206
4 √n
72.748565787584
5 √n
30.864521516946
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
-28009008
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 28009009 can be divided by 8 positive divisors.
The sum of these divisors (counting 28009009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110110001000110001
3
Ternary
1221201000010201
4
Quaternary
1222312020301
5
Quinary
24132242014
6
Senary
2440155201
8
Octal
152661061
10
Decimal
28009009
12
Duodecimal
9468b01
16
Hexadecimal
1ab6231
20
Vigesimal
8f12a9
36
Base36
gobw1
md5
bb5999d54d3c4d3bc22203ccfe24ea88
sha1
8d8ddadbf63f09a404d1c13dbb46704168df62f1
sha256
4830511d2751e5f4b87afb90617750cc97ecb60ace3b6c4d9df1b3f98a5b0430
sha512
383c22d2a76cae76f5345082119bad9d91a5643147a6442d7655c1184c66b436967772e4cd7bf7b130de2d043fb6c4b95a2da10d9521a707e6de3b2435877691
ripemd-160
1ae8f59421d6b81efa01184901c157c33f3dadf4
Diameter
56018018
Circumference
175985793.81746
Area
2.4645938414527E+15
Volume
9.2041108115458E+22
Surface area
9.8583753658108E+15
Circumference
175985793.81746
Perimeter
112036036
Area
784504585162081
Diagonal
39610720.39643
Surface area
4707027510972486
Volume
2.1973195986346E+22
Space diagonal
48513026.657654
Perimeter
84027027
Area
3.3970045006787E+14
Altitude
24256513.328827
Surface area
3.3970045006787E+14
Volume
2.5895659810477E+21
Height
13203573.465477