28890745 is an odd 8-digits composite number following 28890744
and preceding 28890746 . In scientific notation, it is written as 2.8890745 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 21334656 positive integers (up to 28890745) that are relatively prime to 28890745.
28890745 has 8 divisors, whose sum is 37335816
The reverse of 28890745 is 54709882
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million eight hundred ninety thousand seven hundred forty-five
Scientific notation
2.8890745 × 10^7
Engineering notation
2.8890745 × 10^6
Prime Factorization
13 × 5 × 444473
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28890745
Product of the distinct prime numbers
The prime factorization of 28890745 is 13 × 5 × 444473.
Since it has a total of 3 prime factors.
9 , 7 , 11 , 83 , 593 , 414 , 6084 , 8958 , 37981 , 96994 , 751606 , 505262 , 510388 , 3592490 , 88937810 , 31762562 , 633844345 , 361180856 , 6626929587 , 1690413348
n×2
57781490
n×3
86672235
n×4
115562980
n×5
144453725
n÷2
14445372.5
n÷3
9630248.3333333
n÷3
7222686.25
n÷5
5778149
n2
834675146655025
n3
2.4114386819848E+22
n4
6.9668260044359E+29
n5
2.0127679355353E+37
2 √n
5375.0111627791
3 √n
306.84537407415
4 √n
73.314467622558
5 √n
31.05644551671
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
-28890744
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 28890745 can be divided by 8 positive divisors.
The sum of these divisors (counting 28890745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110001101011001111001
3
Ternary
2000100210122121
4
Quaternary
1232031121321
5
Quinary
24344000440
6
Senary
2511121241
8
Octal
156153171
10
Decimal
28890745
12
Duodecimal
9813221
16
Hexadecimal
1b8d679
20
Vigesimal
90b6h5
36
Base36
h788p
md5
f163a9cce5471b9e20f0196f778e28a4
sha1
e3b8369c0671cef1c8abfddceeeeaf696fa352e2
sha256
9200faaea7602ea33161d2054e50a4d14032df79960e348136bd7648cc0542f9
sha512
ca03ab58efd49a1d7eccf21c2da1b438b99174a30a6b1f7cef1d398a80975d958c90a645ea3b4f1a098e40bf07d6f9a764ce755ce4b492aefaf627e4af649baa
ripemd-160
f8d81f2d9fa41e8eabc4917f295da4cc780e7ab4
Diameter
57781490
Circumference
181525904.49747
Area
2.6222093088654E+15
Volume
1.0101010730541E+23
Surface area
1.0488837235462E+16
Circumference
181525904.49747
Perimeter
115562980
Area
834675146655025
Diagonal
40857683.406063
Surface area
5008050879930150
Volume
2.4114386819848E+22
Space diagonal
50040238.208517
Perimeter
86672235
Area
3.6142494045538E+14
Altitude
25020119.104258
Surface area
3.6142494045538E+14
Volume
2.841907740745E+21
Height
13619227.802021