28391641 is an odd 8-digits composite number following 28391640
and preceding 28391642 . In scientific notation, it is written as 2.8391641 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 28002672 positive integers (up to 28391641) that are relatively prime to 28391641.
28391641 has 8 divisors, whose sum is 28783040
The reverse of 28391641 is 14619382
Previous prime number is 373
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million three hundred ninety-one thousand six hundred forty-one
Scientific notation
2.8391641 × 10^7
Engineering notation
2.8391641 × 10^6
Prime Factorization
103 × 373 × 739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28391641
Product of the distinct prime numbers
The prime factorization of 28391641 is 103 × 373 × 739.
Since it has a total of 3 prime factors.
3 , 5 , 1 , 36 , 404 , 368 , 8758 , 9863 , 3468 , 64282 , 25810 , 941856 , 6378401 , 4578098 , 59489836 , 63015187 , 839488630 , 645803331 , 9437429086 , 3488582126
n×2
56783282
n×3
85174923
n×4
113566564
n×5
141958205
n÷2
14195820.5
n÷3
9463880.3333333
n÷3
7097910.25
n÷5
5678328.2
n2
806085278672881
n3
2.2886083847465E+22
n4
6.4977347649314E+29
n5
1.8448135275915E+37
2 √n
5328.3807108727
3 √n
305.06812417185
4 √n
72.995758170408
5 √n
30.94839270405
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
-28391640
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 28391641 can be divided by 8 positive divisors.
The sum of these divisors (counting 28391641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010011100011011001
3
Ternary
1222102110000021
4
Quaternary
1230103203121
5
Quinary
24232013031
6
Senary
2452310441
8
Octal
154234331
10
Decimal
28391641
12
Duodecimal
9612421
16
Hexadecimal
1b138d9
20
Vigesimal
8h8j21
36
Base36
gwj4p
md5
781487bd7cd4d593f22d1fc397394f64
sha1
65f31a3f97c44ae263548c6a1be7d07bd0570756
sha256
2ce488165c60c4080a71732d48c7dfe3e8f27df83b11598f1ae26494d7402b65
sha512
d30f9db79fd367b32170804b7adb61fa9f032b343378a789645314575a5668d7220fd59092ceafa0f6ac977c73ff1e7ed613297c00bc83116cb3a0992d06a83d
ripemd-160
5381e30fb3441ad14a5571751a3f2a52875d72cb
Diameter
56783282
Circumference
178389941.57792
Area
2.5323915896456E+15
Volume
9.5865003846183E+22
Surface area
1.0129566358582E+16
Circumference
178389941.57792
Perimeter
113566564
Area
806085278672881
Diagonal
40151843.760228
Surface area
4836511672037286
Volume
2.2886083847465E+22
Space diagonal
49175764.722256
Perimeter
85174923
Area
3.4904516447369E+14
Altitude
24587882.361128
Surface area
3.4904516447369E+14
Volume
2.6971508472244E+21
Height
13383947.920076