28668465 is an odd 8-digits composite number following 28668464
and preceding 28668466 . In scientific notation, it is written as 2.8668465 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 12526272 positive integers (up to 28668465) that are relatively prime to 28668465.
28668465 has 32 divisors, whose sum is 41817600
The reverse of 28668465 is 56486682
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million six hundred sixty-eight thousand four hundred sixty-five
Scientific notation
2.8668465 × 10^7
Engineering notation
2.8668465 × 10^6
Prime Factorization
21 × 9 × 23 × 5 × 1319
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28668465
Product of the distinct prime numbers
The prime factorization of 28668465 is 21 × 9 × 23 × 5 × 1319.
Since it has a total of 5 prime factors.
2 , 7 , 4 , 15 , 529 , 813 , 7758 , 1838 , 96318 , 46920 , 750456 , 839811 , 6342322 , 2762702 , 95011801 , 66738446 , 276439772 , 594292887 , 4115695807 , 9538770513
n×2
57336930
n×3
86005395
n×4
114673860
n×5
143342325
n÷2
14334232.5
n÷3
9556155
n÷3
7167116.25
n÷5
5733693
n2
821880885456225
n3
2.3562063398871E+22
n4
6.7548818987831E+29
n5
1.936520952944E+37
2 √n
5354.2940711171
3 √n
306.05641020776
4 √n
73.173041969821
5 √n
31.00850926468
1 , 5 , 9 , 21 , 23 , 45 , 105 , 115 , 189 , 207 , 483 , 945 , 1035 , 1319 , 2415 , 4347 , 6595 , 11871 , 21735 , 27699 , 30337 , 59355 , 138495 , 151685 , 249291 , 273033 , 637077 , 1246455 , 1365165 , 3185385 , 5733693 , 28668465
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28668464
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28668465 can be divided by 32 positive divisors.
The sum of these divisors (counting 28668465) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101101010111001000110001
3
Ternary
1222221111202000
4
Quaternary
1231113020301
5
Quinary
24314342330
6
Senary
2502244213
8
Octal
155271061
10
Decimal
28668465
12
Duodecimal
9726669
16
Hexadecimal
1b57231
20
Vigesimal
8j3b35
36
Base36
h2gq9
md5
1a65659c4ef7ecac88a18b361eed14ba
sha1
89fba3f81ecd5701ba042fd087596d57a6e36764
sha256
d28b91d0b518101458c04d54f44c32352959ded1c407acdde9c904794e788f47
sha512
8490b5717c40350e8cd7da50ec586de02c65ac8efa4426318e88609058d01f06c7d4221a98e0359f629dbaf29f1af62a8637b1219eae87d1af05d15da57a7574
ripemd-160
cf55eab3694c5c3cabf9cdde94302c09b05bd0fa
Diameter
57336930
Circumference
180129278.06739
Area
2.5820149518752E+15
Volume
9.8696540369746E+22
Surface area
1.0328059807501E+16
Circumference
180129278.06739
Perimeter
114673860
Area
821880885456225
Diagonal
40543332.015418
Surface area
4931285312737350
Volume
2.3562063398871E+22
Space diagonal
49655237.95501
Perimeter
86005395
Area
3.5588486284497E+14
Altitude
24827618.977505
Surface area
3.5588486284497E+14
Volume
2.7768158013481E+21
Height
13514444.005139