28911025 is an odd 8-digits composite number following 28911024
and preceding 28911026 . In scientific notation, it is written as 2.8911025 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 19406400 positive integers (up to 28911025) that are relatively prime to 28911025.
28911025 has 8 divisors, whose sum is 30281472
The reverse of 28911025 is 52011982
Previous prime number is 143
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million nine hundred eleven thousand twenty-five
Scientific notation
2.8911025 × 10^7
Engineering notation
2.8911025 × 10^6
Prime Factorization
25 × 143 × 8087
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28911025
Product of the distinct prime numbers
The prime factorization of 28911025 is 25 × 143 × 8087.
Since it has a total of 3 prime factors.
9 , 4 , 65 , 6 , 975 , 984 , 5051 , 3549 , 15594 , 17026 , 873019 , 492132 , 8786986 , 7155566 , 25372684 , 30831546 , 933103178 , 745974598 , 2693353056 , 379186580
n×2
57822050
n×3
86733075
n×4
115644100
n×5
144555125
n÷2
14455512.5
n÷3
9637008.3333333
n÷3
7227756.25
n÷5
5782205
n2
835847366550625
n3
2.4165204110529E+22
n4
6.9864082016961E+29
n5
2.0198422217944E+37
2 √n
5376.8973395444
3 √n
306.9171544858
4 √n
73.32733009966
5 √n
31.060804337822
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
-28911024
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 28911025 can be divided by 8 positive divisors.
The sum of these divisors (counting 28911025) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010010010110110001
3
Ternary
2000101211110201
4
Quaternary
1232102112301
5
Quinary
24400123100
6
Senary
2511355201
8
Octal
156222661
10
Decimal
28911025
12
Duodecimal
9822b01
16
Hexadecimal
1b925b1
20
Vigesimal
90dhb5
36
Base36
h7nw1
md5
2459eaf074552b7234f779f4e3c3d493
sha1
a727abeddb2787bdcf7abcfceb68928f36487813
sha256
9f487ed5f279a64a11e2d4d5349c51e4f16e4326f531da7eebce8565751704df
sha512
f0a5d63c1ac43852ae25582b200996d2a2e2fa842f4fb6bd553378adc182e15e5900714f9fc242b17c9306890627f53c549f7b684f0e985af072ab361af43aef
ripemd-160
484faa30685b5e7ea08438a2e90c816109a77d34
Diameter
57822050
Circumference
181653327.4955
Area
2.6258919462778E+15
Volume
1.0122297027485E+23
Surface area
1.0503567785111E+16
Circumference
181653327.4955
Perimeter
115644100
Area
835847366550625
Diagonal
40886363.657108
Surface area
5015084199303750
Volume
2.4165204110529E+22
Space diagonal
50075364.198894
Perimeter
86733075
Area
3.6193252655958E+14
Altitude
25037682.099447
Surface area
3.6193252655958E+14
Volume
2.8478966158854E+21
Height
13628787.885703