28991679 is an odd 8-digits composite number following 28991678
and preceding 28991680 . In scientific notation, it is written as 2.8991679 × 10^7.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 19327784 positive integers (up to 28991679) that are relatively prime to 28991679.
28991679 has 4 divisors, whose sum is 38655576
The reverse of 28991679 is 97619982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty-eight million nine hundred ninety-one thousand six hundred seventy-nine
Scientific notation
2.8991679 × 10^7
Engineering notation
2.8991679 × 10^6
Prime Factorization
3 × 9663893
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28991679
Product of the distinct prime numbers
The prime factorization of 28991679 is 3 × 9663893.
Since it has a total of 2 prime factors.
3 , 8 , 96 , 37 , 891 , 323 , 2893 , 1453 , 2883 , 94441 , 849602 , 237564 , 8180854 , 1986752 , 95392747 , 55609591 , 860934795 , 663001869 , 7076499045 , 8392070283
n×2
57983358
n×3
86975037
n×4
115966716
n×5
144958395
n÷2
14495839.5
n÷3
9663893
n÷3
7247919.75
n÷5
5798335.8
n2
840517451239041
n3
2.436801214022E+22
n4
7.0646958583737E+29
n5
2.048173945586E+37
2 √n
5384.3921662524
3 √n
307.2022949895
4 √n
73.378417578007
5 √n
31.078115292887
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
-28991678
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 28991679 can be divided by 4 positive divisors.
The sum of these divisors (counting 28991679) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110000010111111
3
Ternary
2000112221002220
4
Quaternary
1232212002333
5
Quinary
24410213204
6
Senary
2513220423
8
Octal
156460277
10
Decimal
28991679
12
Duodecimal
9861713
16
Hexadecimal
1ba60bf
20
Vigesimal
913j3j
36
Base36
h9e4f
md5
c9808cca610661740eeb79231d909747
sha1
5b677a0801e9777cdb496c7172593bd93d1b68b9
sha256
d43e95347ee61993ad3f8e85acdc5c4c49857539d5b5755f44fe86083310a795
sha512
1800bae4f778212003e029d1d23ec475c1a55a99687e7a6d4a2ae9ba6eed39b0ee152336d91074c4b4a1095834e40937614c10b9388ebd5c23f75ea1096eb189
ripemd-160
d36bd492640956a781e49936f147bd2d752902de
Diameter
57983358
Circumference
182160091.52327
Area
2.6405634500266E+15
Volume
1.0207249056307E+23
Surface area
1.0562253800106E+16
Circumference
182160091.52327
Perimeter
115966716
Area
840517451239041
Diagonal
41000425.637767
Surface area
5043104707434246
Volume
2.436801214022E+22
Space diagonal
50215061.024728
Perimeter
86975037
Area
3.6395473254858E+14
Altitude
25107530.512364
Surface area
3.6395473254858E+14
Volume
2.8717977713977E+21
Height
13666808.545922