28955 is an odd 5-digits composite number following 28954
and preceding 28956 . In scientific notation, it is written as 2.8955 × 10^4.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 23160 positive integers (up to 28955) that are relatively prime to 28955.
28955 has 4 divisors, whose sum is 34752
The reverse of 28955 is 55982
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 29
Digital Root 2
Name
twenty-eight thousand nine hundred fifty-five
Scientific notation
2.8955 × 10^4
Engineering notation
2.8955 × 10^3
Prime Factorization
5 × 5791
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28955
Product of the distinct prime numbers
The prime factorization of 28955 is 5 × 5791.
Since it has a total of 2 prime factors.
9 , 3 , 23 , 88 , 731 , 440 , 7787 , 6239 , 38276 , 6665 , 197049 , 90491 , 2552693 , 4906609 , 99987507 , 68537744 , 575316701 , 623776377 , 8347353096 , 6507265271
n×2
57910
n×3
86865
n×4
115820
n×5
144775
n÷2
14477.5
n÷3
9651.6666666667
n÷3
7238.75
n÷5
5791
n2
838392025
n3
24275641083875
n4
702901187583600625
n5
2.0352503886483E+22
2 √n
170.16168781485
3 √n
30.707268736204
4 √n
13.044603781444
5 √n
7.8044933311797
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
-28954
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 28955 can be divided by 4 positive divisors.
The sum of these divisors (counting 28955) is 1, the average is 0.25.
Base
System
Value
2
Binary
111000100011011
3
Ternary
1110201102
4
Quaternary
13010123
5
Quinary
1411310
6
Senary
342015
8
Octal
70433
10
Decimal
28955
12
Duodecimal
1490b
16
Hexadecimal
711b
20
Vigesimal
3c7f
36
Base36
mcb
md5
d89f151c51c3d0903f0b39042fb55753
sha1
21b28192e04fd6069824a2d63c98b026d5c6d9d4
sha256
dff239adc8a33eb826919dc05f1d0f1013e1f5343359022a75c1d259f6840fe6
sha512
a79d681ce2104275b35ef717705b907e95947f6618425cbaaf6c850311852c1a91a17dc895623f93214751d4f4f0bc10cb5207229a1ae792e9c9629db86f2bfe
ripemd-160
27ec8841d94f3cc56e67a459af9fd3531e5fa27f
Diameter
57910
Circumference
181929.63056938
Area
2633886226.5683
Volume
1.0168556758705E+14
Surface area
10535544906.273
Circumference
181929.63056938
Perimeter
115820
Area
838392025
Diagonal
40948.553698513
Surface area
5030352150
Volume
24275641083875
Space diagonal
50151.531133157
Perimeter
86865
Area
363034395.99014
Altitude
25075.765566578
Surface area
363034395.99014
Volume
2860911738009.8
Height
13649.517899504