28872790 is an even 8-digits composite number following 28872789
and preceding 28872791 . In scientific notation, it is written as 2.8872790 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 11549112 positive integers (up to 28872790) that are relatively prime to 28872790.
28872790 has 8 divisors, whose sum is 51971040
The reverse of 28872790 is 09727882
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million eight hundred seventy-two thousand seven hundred ninety
Scientific notation
2.8872790 × 10^7
Engineering notation
2.8872790 × 10^6
Prime Factorization
2 × 5 × 2887279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28872790
Product of the distinct prime numbers
The prime factorization of 28872790 is 2 × 5 × 2887279.
Since it has a total of 3 prime factors.
1 , 8 , 65 , 11 , 306 , 887 , 4670 , 9439 , 67377 , 72948 , 175932 , 488299 , 7084045 , 2846116 , 25999381 , 93974822 , 815549020 , 940578765 , 4735978295 , 3341262075
n×2
57745580
n×3
86618370
n×4
115491160
n×5
144363950
n÷2
14436395
n÷3
9624263.3333333
n÷3
7218197.5
n÷5
5774558
n2
833638002384100
n3
2.4069454978856E+22
n4
6.9495231901895E+29
n5
2.0065212367047E+37
2 √n
5373.3406741058
3 √n
306.78179488512
4 √n
73.303074110884
5 √n
31.052584369133
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
-28872789
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 28872790 can be divided by 8 positive divisors.
The sum of these divisors (counting 28872790) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110001001000001010110
3
Ternary
2000022220000121
4
Quaternary
1232021001112
5
Quinary
24342412130
6
Senary
2510502154
8
Octal
156110126
10
Decimal
28872790
12
Duodecimal
980495a
16
Hexadecimal
1b89056
20
Vigesimal
9091ja
36
Base36
h6udy
md5
47fc3339ca67c16c69bdad020a8b2b34
sha1
d8b0d59345b88526ebcb585b613859a225a100f0
sha256
6862066f988eee19ffe18fbda0e02d4e6b9fdf29ece812a95e6f17389ee29bd9
sha512
3bae93df7247e9b2986ce9a68f82af8bc123d5bd11d17d63b13799513966efd816a410c149e93352a15a8a1cf02f4704ca383d42303140356bd65493c5a5fb86
ripemd-160
d1cee10162c0dd7f123915562d2d702a6d12f9af
Diameter
57745580
Circumference
181413089.90528
Area
2.6189510240432E+15
Volume
1.0082189724998E+23
Surface area
1.0475804096173E+16
Circumference
181413089.90528
Perimeter
115491160
Area
833638002384100
Diagonal
40832291.20155
Surface area
5001828014304600
Volume
2.4069454978856E+22
Space diagonal
50009139.236267
Perimeter
86618370
Area
3.6097584381237E+14
Altitude
25004569.618133
Surface area
3.6097584381237E+14
Volume
2.8366124725022E+21
Height
13610763.73385