28942949 is an odd 8-digits composite number following 28942948
and preceding 28942950 . In scientific notation, it is written as 2.8942949 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 24808236 positive integers (up to 28942949) that are relatively prime to 28942949.
28942949 has 4 divisors, whose sum is 33077664
The reverse of 28942949 is 94924982
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million nine hundred forty-two thousand nine hundred forty-nine
Scientific notation
2.8942949 × 10^7
Engineering notation
2.8942949 × 10^6
Prime Factorization
7 × 4134707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28942949
Product of the distinct prime numbers
The prime factorization of 28942949 is 7 × 4134707.
Since it has a total of 2 prime factors.
3 , 9 , 57 , 85 , 163 , 152 , 3030 , 2106 , 99758 , 54918 , 707721 , 321492 , 9971706 , 749391 , 48146344 , 4772106 , 555862077 , 139281025 , 437012085 , 2821933851
n×2
57885898
n×3
86828847
n×4
115771796
n×5
144714745
n÷2
14471474.5
n÷3
9647649.6666667
n÷3
7235737.25
n÷5
5788589.8
n2
837694296816601
n3
2.4245343310354E+22
n4
7.0173173491906E+29
n5
2.0310185815444E+37
2 √n
5379.8651470088
3 √n
307.03008048403
4 √n
73.347564015506
5 √n
31.067660873957
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
-28942948
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 28942949 can be divided by 4 positive divisors.
The sum of these divisors (counting 28942949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110011010001001100101
3
Ternary
2000110110021002
4
Quaternary
1232122021211
5
Quinary
24402133244
6
Senary
2512203045
8
Octal
156321145
10
Decimal
28942949
12
Duodecimal
9839485
16
Hexadecimal
1b9a265
20
Vigesimal
90hh79
36
Base36
h8cit
md5
dd1f4c490cff33905efd54e479f845f7
sha1
c959b15a15de2e2e092de89271b0a726d3713918
sha256
c3a8de57528ac0a8325c6300e41ab2e64a2e9c3579b28e13b2ba7b0bf063a7f8
sha512
fb91147e97992c1c03f580f800d8bbb3dc63150f9cb4ea23721d4ea61523825328405c717a225e17068dd8d721a0aa9cf73cfe47e6590a5b82072804d73ef9c8
ripemd-160
3152be973a007e2291fa8c9d630bc03fafa06ad3
Diameter
57885898
Circumference
181853911.90325
Area
2.6316942488331E+15
Volume
1.0155865657009E+23
Surface area
1.0526776995332E+16
Circumference
181853911.90325
Perimeter
115771796
Area
837694296816601
Diagonal
40931511.010873
Surface area
5026165780899606
Volume
2.4245343310354E+22
Space diagonal
50130658.188875
Perimeter
86828847
Area
3.6273227082426E+14
Altitude
25065329.094437
Surface area
3.6273227082426E+14
Volume
2.8573411111578E+21
Height
13643837.003624