28939961 is an odd 8-digits composite number following 28939960
and preceding 28939962 . In scientific notation, it is written as 2.8939961 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 28304640 positive integers (up to 28939961) that are relatively prime to 28939961.
28939961 has 8 divisors, whose sum is 29578824
The reverse of 28939961 is 16993982
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million nine hundred thirty-nine thousand nine hundred sixty-one
Scientific notation
2.8939961 × 10^7
Engineering notation
2.8939961 × 10^6
Prime Factorization
53 × 421 × 1297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28939961
Product of the distinct prime numbers
The prime factorization of 28939961 is 53 × 421 × 1297.
Since it has a total of 3 prime factors.
10 , 5 , 46 , 7 , 821 , 429 , 3948 , 8078 , 73621 , 82708 , 213882 , 930492 , 3370673 , 8403765 , 73006392 , 20549384 , 472531156 , 229792092 , 7050726849 , 4379081159
n×2
57879922
n×3
86819883
n×4
115759844
n×5
144699805
n÷2
14469980.5
n÷3
9646653.6666667
n÷3
7234990.25
n÷5
5787992.2
n2
837521342681521
n3
2.4237834993871E+22
n4
7.0144199944706E+29
n5
2.029970410776E+37
2 √n
5379.587437713
3 √n
307.01951443963
4 √n
73.34567088597
5 √n
31.067019377444
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
-28939960
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 28939961 can be divided by 8 positive divisors.
The sum of these divisors (counting 28939961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110011001011010111001
3
Ternary
2000110022011102
4
Quaternary
1232121122321
5
Quinary
24402034321
6
Senary
2512141145
8
Octal
156313271
10
Decimal
28939961
12
Duodecimal
98377b5
16
Hexadecimal
1b996b9
20
Vigesimal
90h9i1
36
Base36
h8a7t
md5
1c9b11de789ef4c0c439680cdd463692
sha1
b61126e3c53cf7a78168b931b6f1fcd0b8fee4c1
sha256
7c689e3215d45eec0c65ee39afc888168b09255c61d55305e413331e8341f4cb
sha512
d2c0e4168340d638e3adb837100b811283d84d358252a8fe8454ba179cd9d72f8df7f34795f0ae528445a3aad44a026bb3b44fb05c3f2ba0b403862b3ce79b35
ripemd-160
c5c184ae4817e33f9bd1c5a3d12e0e35f5267a20
Diameter
57879922
Circumference
181835137.74555
Area
2.6311508973929E+15
Volume
1.0152720580756E+23
Surface area
1.0524603589572E+16
Circumference
181835137.74555
Perimeter
115759844
Area
837521342681521
Diagonal
40927285.340748
Surface area
5025128056089126
Volume
2.4237834993871E+22
Space diagonal
50125482.821062
Perimeter
86819883
Area
3.6265737948692E+14
Altitude
25062741.410531
Surface area
3.6265737948692E+14
Volume
2.8564562475744E+21
Height
13642428.446916