28012961 is an odd 8-digits composite number following 28012960
and preceding 28012962 . In scientific notation, it is written as 2.8012961 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 27998400 positive integers (up to 28012961) that are relatively prime to 28012961.
28012961 has 4 divisors, whose sum is 28027524
The reverse of 28012961 is 16921082
Previous prime number is 2281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million twelve thousand nine hundred sixty-one
Scientific notation
2.8012961 × 10^7
Engineering notation
2.8012961 × 10^6
Prime Factorization
2281 × 12281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28012961
Product of the distinct prime numbers
The prime factorization of 28012961 is 2281 × 12281.
Since it has a total of 2 prime factors.
5 , 10 , 57 , 48 , 71 , 186 , 767 , 8027 , 12690 , 13296 , 427578 , 266593 , 749204 , 1746344 , 83131168 , 78007210 , 639847354 , 390994470 , 727476372 , 7849950689
n×2
56025922
n×3
84038883
n×4
112051844
n×5
140064805
n÷2
14006480.5
n÷3
9337653.6666667
n÷3
7003240.25
n÷5
5602592.2
n2
784725983987521
n3
2.1982498385129E+22
n4
6.1579486994518E+29
n5
1.7250237675774E+37
2 √n
5292.7271798195
3 √n
303.70574380483
4 √n
72.751131811261
5 √n
30.865392448905
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
-28012960
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 28012961 can be divided by 4 positive divisors.
The sum of these divisors (counting 28012961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110111000110100001
3
Ternary
1221201012120002
4
Quaternary
1222313012201
5
Quinary
24132403321
6
Senary
2440225345
8
Octal
152670641
10
Decimal
28012961
12
Duodecimal
946b255
16
Hexadecimal
1ab71a1
20
Vigesimal
8f1c81
36
Base36
goext
md5
f5758ff323e3cdb515286b285f4fb7df
sha1
1e007b126704826cf4b55207ad4034bfc8816de4
sha256
3ac06e4a610803bebfd40f6dcc5f0ab914b7be7ee606b19b0bf19d5786b4ead8
sha512
a8dce6fb896ada5d121f20a21465b52b1293107c038228ed7403612883f22ed833ae922a6a4864f173dffb07e02517e9c59634950f11b12272d763480e2cf652
ripemd-160
f7493d9f63fc435d08fa9a00528a0b238f7b90cd
Diameter
56025922
Circumference
176010624.96579
Area
2.4652893863762E+15
Volume
9.2080073912361E+22
Surface area
9.8611575455049E+15
Circumference
176010624.96579
Perimeter
112051844
Area
784725983987521
Diagonal
39616309.368429
Surface area
4708355903925126
Volume
2.1982498385129E+22
Space diagonal
48519871.722445
Perimeter
84038883
Area
3.3979631857147E+14
Altitude
24259935.861223
Surface area
3.3979631857147E+14
Volume
2.5906622792578E+21
Height
13205436.456143