28938 is an even 5-digits composite number following 28937
and preceding 28939 . In scientific notation, it is written as 2.8938 × 10^4.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7488 positive integers (up to 28938) that are relatively prime to 28938.
28938 has 8 divisors, whose sum is 46788
The reverse of 28938 is 83982
Previous prime number is 1113
Is Prime? no
Number parity even
Number length 5
Sum of Digits 30
Digital Root 3
Name
twenty-eight thousand nine hundred thirty-eight
Scientific notation
2.8938 × 10^4
Engineering notation
2.8938 × 10^3
Prime Factorization
2 × 1113 × 13
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28938
Product of the distinct prime numbers
The prime factorization of 28938 is 2 × 1113 × 13.
Since it has a total of 3 prime factors.
4 , 10 , 28 , 36 , 207 , 522 , 9714 , 9718 , 15594 , 67713 , 641023 , 895796 , 9515144 , 3175463 , 65777171 , 45256803 , 214957987 , 323550479 , 1254494287 , 6179095811
n×2
57876
n×3
86814
n×4
115752
n×5
144690
n÷2
14469
n÷3
9646
n÷3
7234.5
n÷5
5787.6
n2
837407844
n3
24232908189672
n4
701251897192728336
n5
2.0292827400963E+22
2 √n
170.11172799075
3 √n
30.701257963569
4 √n
13.042688679515
5 √n
7.8035766842705
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
-28937
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 28938 can be divided by 8 positive divisors.
The sum of these divisors (counting 28938) is 1, the average is 0.125.
Base
System
Value
2
Binary
111000100001010
3
Ternary
1110200210
4
Quaternary
13010022
5
Quinary
1411223
6
Senary
341550
8
Octal
70412
10
Decimal
28938
12
Duodecimal
148b6
16
Hexadecimal
710a
20
Vigesimal
3c6i
36
Base36
mbu
md5
dd0e5d3313b032ce56c959d25e1beee1
sha1
8756a434f5c36f5b5117ce3c2334098f0b50b596
sha256
29f7e33c2656e36b348f68f78950f7c87638e93e8e81dedf4bad98bd8c40c816
sha512
412f00055a9210f279fd2a81160fed736028ef91a8b8a9ca3a1500eaef7fb6eb9306a3d7b281417e3dfc03ae8d87ba9debcd69c77cf3b6b9c860f400e15f7191
ripemd-160
fb9a7536cb28f0dfaa607bff750cf79f133876c0
Diameter
57876
Circumference
181822.81641916
Area
2630794330.7689
Volume
1.0150656845839E+14
Surface area
10523177323.075
Circumference
181822.81641916
Perimeter
115752
Area
837407844
Diagonal
40924.512067953
Surface area
5024447064
Volume
24232908189672
Space diagonal
50122.086269428
Perimeter
86814
Area
362608233.11618
Altitude
25061.043134714
Surface area
362608233.11618
Volume
2855875618131.3
Height
13641.504022651