28077881 is an odd 8-digits composite number following 28077880
and preceding 28077882 . In scientific notation, it is written as 2.8077881 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 25870032 positive integers (up to 28077881) that are relatively prime to 28077881.
28077881 has 8 divisors, whose sum is 30293760
The reverse of 28077881 is 18877082
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million seventy-seven thousand eight hundred eighty-one
Scientific notation
2.8077881 × 10^7
Engineering notation
2.8077881 × 10^6
Prime Factorization
13 × 643 × 3359
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28077881
Product of the distinct prime numbers
The prime factorization of 28077881 is 13 × 643 × 3359.
Since it has a total of 3 prime factors.
8 , 3 , 74 , 8 , 643 , 238 , 7288 , 3622 , 27195 , 67230 , 78794 , 93906 , 6663482 , 3078336 , 74684751 , 45001845 , 984849143 , 74519068 , 6948277841 , 9319296054
n×2
56155762
n×3
84233643
n×4
112311524
n×5
140389405
n÷2
14038940.5
n÷3
9359293.6666667
n÷3
7019470.25
n÷5
5615576.2
n2
788367401450161
n3
2.2135686082197E+22
n4
6.2152315966928E+29
n5
1.7451053315938E+37
2 √n
5298.8565747716
3 √n
303.94017535267
4 √n
72.793245392492
5 √n
30.879685306788
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
-28077880
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 28077881 can be divided by 8 positive divisors.
The sum of these divisors (counting 28077881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011000110111100111001
3
Ternary
1221211111121112
4
Quaternary
1223012330321
5
Quinary
24141443011
6
Senary
2441450105
8
Octal
153067471
10
Decimal
28077881
12
Duodecimal
94a0935
16
Hexadecimal
1ac6f39
20
Vigesimal
8f9ee1
36
Base36
gpt15
md5
f442519041e5b5a35df67f7e5819bd90
sha1
1d552f5cbd3e581de47195e6b07d279fce53ed39
sha256
477b72a4a0338e86bba2d0bc2b7f372fc12e8e9d193b9aceb4714a21a7a95c27
sha512
9b67c34d57507160e9797499a170b30952e42a0c8fe2ede631e03207f47db5f42a830a0c33e898c4196671b5ea819583a485aec70f53044eb78fbac08f9ee170
ripemd-160
5bb14d411b58b681ea6fff3654beae6acdbb9229
Diameter
56155762
Circumference
176418529.35594
Area
2.4767292367255E+15
Volume
9.2721745037333E+22
Surface area
9.906916946902E+15
Circumference
176418529.35594
Perimeter
112311524
Area
788367401450161
Diagonal
39708120.112898
Surface area
4730204408700966
Volume
2.2135686082197E+22
Space diagonal
48632316.460873
Perimeter
84233643
Area
3.4137309858568E+14
Altitude
24316158.230436
Surface area
3.4137309858568E+14
Volume
2.6087156224897E+21
Height
13236040.037633