28390943 is an odd 8-digits composite number following 28390942
and preceding 28390944 . In scientific notation, it is written as 2.8390943 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 24335052 positive integers (up to 28390943) that are relatively prime to 28390943.
28390943 has 4 divisors, whose sum is 28970400
The reverse of 28390943 is 34909382
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million three hundred ninety thousand nine hundred forty-three
Scientific notation
2.8390943 × 10^7
Engineering notation
2.8390943 × 10^6
Prime Factorization
49 × 579407
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28390943
Product of the distinct prime numbers
The prime factorization of 28390943 is 49 × 579407.
Since it has a total of 2 prime factors.
4 , 8 , 31 , 14 , 205 , 540 , 467 , 7852 , 9283 , 26978 , 517447 , 969355 , 3924402 , 2407273 , 9998607 , 6621283 , 677585898 , 973439816 , 5035399523 , 7005402863
n×2
56781886
n×3
85172829
n×4
113563772
n×5
141954715
n÷2
14195471.5
n÷3
9463647.6666667
n÷3
7097735.75
n÷5
5678188.6
n2
806045644429249
n3
2.2884395946389E+22
n4
6.4970958090336E+29
n5
1.8445867677981E+37
2 √n
5328.3152121473
3 √n
305.0656241485
4 √n
72.995309521553
5 √n
30.948240531159
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28390942
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28390943 can be divided by 4 positive divisors.
The sum of these divisors (counting 28390943) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010011011000011111
3
Ternary
1222102102001102
4
Quaternary
1230103120133
5
Quinary
24232002233
6
Senary
2452303315
8
Octal
154233037
10
Decimal
28390943
12
Duodecimal
9611b3b
16
Hexadecimal
1b1361f
20
Vigesimal
8h8h73
36
Base36
gwilb
md5
10431985854ec0f696239c79889d547d
sha1
0474ab8a5de65957368c814b9f783036871c85e4
sha256
06b08cb1bcd39aa33b9210223fef4dd37e65e7c7eb528f3e74b1d5b6010921df
sha512
96a88a9e9e2d8fefdb40842ca8f652eae79df863596b10c8e969b8946b85b7234526bc8b0ff25ae4a086e82d2779ed1fc2a0846c06f08715dc722cc107771eb1
ripemd-160
744e6672289d61fdef27066e6bdb0b2d7f588b11
Diameter
56781886
Circumference
178385555.91457
Area
2.532267074997E+15
Volume
9.5857933582688E+22
Surface area
1.0129068299988E+16
Circumference
178385555.91457
Perimeter
113563772
Area
806045644429249
Diagonal
40150856.639161
Surface area
4836273866575494
Volume
2.2884395946389E+22
Space diagonal
49174555.750792
Perimeter
85172829
Area
3.4902800234276E+14
Altitude
24587277.875396
Surface area
3.4902800234276E+14
Volume
2.6969519261749E+21
Height
13383618.87972