28742561 is an odd 8-digits prime number following 28742560
and preceding 28742562 . In scientific notation, it is written as 2.8742561 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 28742560 positive integers (up to 28742561) that are relatively prime to 28742561.
28742561 has 2 divisors, whose sum is 28742562
The reverse of 28742561 is 16524782
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 35 Digital Root 8
Name
twenty-eight million seven hundred forty-two thousand five hundred sixty-one
Scientific notation
2.8742561 × 10^7
Engineering notation
2.8742561 × 10^6
Prime Factorization
28742561
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28742561 Product of the distinct prime numbers
The prime factorization of 28742561 is 28742561.
Since it has a total of 1 prime factors.
3 , 3 , 33 , 38 , 398 , 621 , 4985 , 6052 , 33818 , 84229 , 629522 , 628552 , 988262 , 7004190 , 60989446 , 85908025 , 903857446 , 673440865 , 4834346451 , 3873700009
n×2
57485122
n×3
86227683
n×4
114970244
n×5
143712805
n÷2
14371280.5
n÷3
9580853.6666667
n÷3
7185640.25
n÷5
5748512.2
n2
826134812838721
n3
2.3745230252241E+22
n4
6.8249872898407E+29
n5
1.9616761350247E+37
2 √n5361.2089121764
3 √n306.31985933722
4 √n73.220276646407
5 √n31.024521526504
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28742562 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14371281 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5361.209005439 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999304168 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28742561 can be divided by 2 positive divisors.
The sum of these divisors (counting 28742561) is 28742562, the average is 14371281.
Base
System
Value
2
Binary
1101101101001001110100001
3
Ternary
2000002021101022
4
Quaternary
1231221032201
5
Quinary
24324230221
6
Senary
2504015225
8
Octal
155511641
10
Decimal
28742561
12
Duodecimal
9761515
16
Hexadecimal
1b693a1
20
Vigesimal
8jcg81
36
Base36
h41wh
md5
831487a5df750a93d91bd3d4e2f4fb72
sha1
36d559e004bd725e0af38e60ac9ef1c88f6c5963
sha256
6870c2e54b8d5c2cb4318dbb0c9ad4a0b344d591e3f3d7173b37e38c7341d82e
sha512
f34f2b4e3f1464962601705b0ee2c30cb7da86d8d0700e8d3e8726927493b3db7682d876f57f2a793aede4893c401429d76955a1e3fac28dcfd95fd6f2bdaf8c
ripemd-160
b557f54190b73fda9880418ea8fb907339485b52
Diameter
57485122
Circumference
180594836.96591
Area
2.5953790588889E+15
Volume
9.9463787890983E+22
Surface area
1.0381516235556E+16
Circumference
180594836.96591
Perimeter
114970244
Area
826134812838721
Diagonal
40648119.583536
Surface area
4956808877032326
Volume
2.3745230252241E+22
Space diagonal
49783575.991648
Perimeter
86227683
Area
3.5772686743452E+14
Altitude
24891787.995824
Surface area
3.5772686743452E+14
Volume
2.7984022220325E+21
Height
13549373.194512