28911055 is an odd 8-digits composite number following 28911054
and preceding 28911056 . In scientific notation, it is written as 2.8911055 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 23128840 positive integers (up to 28911055) that are relatively prime to 28911055.
28911055 has 4 divisors, whose sum is 34693272
The reverse of 28911055 is 55011982
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million nine hundred eleven thousand fifty-five
Scientific notation
2.8911055 × 10^7
Engineering notation
2.8911055 × 10^6
Prime Factorization
5 × 5782211
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28911055
Product of the distinct prime numbers
The prime factorization of 28911055 is 5 × 5782211.
Since it has a total of 2 prime factors.
7 , 9 , 38 , 85 , 69 , 171 , 5893 , 7076 , 61108 , 15842 , 333632 , 674311 , 2031899 , 3372651 , 2624372 , 12391594 , 436003685 , 34343800 , 4496563807 , 2752859155
n×2
57822110
n×3
86733165
n×4
115644220
n×5
144555275
n÷2
14455527.5
n÷3
9637018.3333333
n÷3
7227763.75
n÷5
5782211
n2
835849101213025
n3
2.416527933687E+22
n4
6.9864371999862E+29
n5
2.0198527014285E+37
2 √n
5376.9001292566
3 √n
306.91726064497
4 √n
73.327349121979
5 √n
31.06081078397
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
-28911054
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 28911055 can be divided by 4 positive divisors.
The sum of these divisors (counting 28911055) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010010010111001111
3
Ternary
2000101211111211
4
Quaternary
1232102113033
5
Quinary
24400123210
6
Senary
2511355251
8
Octal
156222717
10
Decimal
28911055
12
Duodecimal
9822b27
16
Hexadecimal
1b925cf
20
Vigesimal
90dhcf
36
Base36
h7nwv
md5
8f41e7aa63f7cc09ccebe60f2beea919
sha1
03b0e1bb1217301b4529635c9bceb5fd28afb329
sha256
f7996acaef69be02a86e1a6984a58955590bc9a482124e290cbd179ead7f2909
sha512
21475eff1caa18df28757befe8198e45089f0a17ba4e3048d93e830cdc8482a9bbb3f169c87239dbe0c5ecbd2566ac4f156f26e46ba72f70d7c8319f04e7856c
ripemd-160
5d97bf464c620790766aa85a5c636f54d283162f
Diameter
57822110
Circumference
181653515.99106
Area
2.6258973958805E+15
Volume
1.0122328538221E+23
Surface area
1.0503589583522E+16
Circumference
181653515.99106
Perimeter
115644220
Area
835849101213025
Diagonal
40886406.083514
Surface area
5015094607278150
Volume
2.416527933687E+22
Space diagonal
50075416.160418
Perimeter
86733165
Area
3.6193327769044E+14
Altitude
25037708.080209
Surface area
3.6193327769044E+14
Volume
2.8479054813947E+21
Height
13628802.027838