28412981 is an odd 8-digits composite number following 28412980
and preceding 28412982 . In scientific notation, it is written as 2.8412981 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 26544672 positive integers (up to 28412981) that are relatively prime to 28412981.
28412981 has 4 divisors, whose sum is 28442700
The reverse of 28412981 is 18921482
Previous prime number is 989
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million four hundred twelve thousand nine hundred eighty-one
Scientific notation
2.8412981 × 10^7
Engineering notation
2.8412981 × 10^6
Prime Factorization
989 × 28729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28412981
Product of the distinct prime numbers
The prime factorization of 28412981 is 989 × 28729.
Since it has a total of 2 prime factors.
5 , 2 , 18 , 64 , 575 , 806 , 8065 , 7617 , 61786 , 76515 , 445820 , 181542 , 61240 , 5188946 , 72913336 , 4417760 , 77720523 , 832851455 , 7958399190 , 3547511927
n×2
56825962
n×3
85238943
n×4
113651924
n×5
142064905
n÷2
14206490.5
n÷3
9470993.6666667
n÷3
7103245.25
n÷5
5682596.2
n2
807297489306361
n3
2.2937728225009E+22
n4
6.5172923624035E+29
n5
1.8517570406442E+37
2 √n
5330.3828192729
3 √n
305.14453778217
4 √n
73.009470750533
5 √n
30.953043652037
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
-28412980
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 28412981 can be divided by 4 positive divisors.
The sum of these divisors (counting 28412981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100011000110000110101
3
Ternary
1222110112021122
4
Quaternary
1230120300311
5
Quinary
24233203411
6
Senary
2452553325
8
Octal
154306065
10
Decimal
28412981
12
Duodecimal
9622845
16
Hexadecimal
1b18c35
20
Vigesimal
8hbc91
36
Base36
gwzlh
md5
61402308989a9f4aa21a30e87f4273c4
sha1
8b44dd33d5ea72a6b518310679b56e07d5a3c74c
sha256
54ed6881c14f4cabc5e6825cde887e05d48763c034752855b3409a881fc47248
sha512
6bbf5212ddf599d91468e3874e91e9b25d338d82007b95c56736ff3781481e8b46aaa2a6b2375d9ad3444ee6ccbcd0bb9564badfda991cd8a111464507c76973
ripemd-160
db9662abf663695003aa99de70b2459b93d20ced
Diameter
56825962
Circumference
178524024.75237
Area
2.5361998616663E+15
Volume
9.6081331308971E+22
Surface area
1.0144799446665E+16
Circumference
178524024.75237
Perimeter
113651924
Area
807297489306361
Diagonal
40182023.077649
Surface area
4843784935838166
Volume
2.2937728225009E+22
Space diagonal
49212726.686489
Perimeter
85238943
Area
3.4957006707535E+14
Altitude
24606363.343245
Surface area
3.4957006707535E+14
Volume
2.7032371954864E+21
Height
13394007.69255