28888915 is an odd 8-digits composite number following 28888914
and preceding 28888916 . In scientific notation, it is written as 2.8888915 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 21010080 positive integers (up to 28888915) that are relatively prime to 28888915.
28888915 has 4 divisors, whose sum is 29414224
The reverse of 28888915 is 51988882
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million eight hundred eighty-eight thousand nine hundred fifteen
Scientific notation
2.8888915 × 10^7
Engineering notation
2.8888915 × 10^6
Prime Factorization
55 × 525253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28888915
Product of the distinct prime numbers
The prime factorization of 28888915 is 55 × 525253.
Since it has a total of 2 prime factors.
10 , 8 , 6 , 36 , 771 , 522 , 5980 , 7576 , 13944 , 40498 , 389388 , 662610 , 1668232 , 476869 , 50286214 , 79002381 , 966729844 , 606990692 , 812444815 , 553447580
n×2
57777830
n×3
86666745
n×4
115555660
n×5
144444575
n÷2
14444457.5
n÷3
9629638.3333333
n÷3
7222228.75
n÷5
5777783
n2
834569409877225
n3
2.4109804743543E+22
n4
6.9650609990282E+29
n5
2.0121305517074E+37
2 √n
5374.8409278787
3 √n
306.83889519553
4 √n
73.313306622186
5 √n
31.056052070745
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
-28888914
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 28888915 can be divided by 4 positive divisors.
The sum of these divisors (counting 28888915) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110001100111101010011
3
Ternary
2000100201010211
4
Quaternary
1232030331103
5
Quinary
24343421130
6
Senary
2511104551
8
Octal
156147523
10
Decimal
28888915
12
Duodecimal
9812157
16
Hexadecimal
1b8cf53
20
Vigesimal
90b25f
36
Base36
h76tv
md5
c031274c9649fbce8a294052a6f3a79d
sha1
b311232dd9414f1e5fa87c1fe42cf9598111159e
sha256
a4a96c894c07ba370bca13456fc582ae604bd4c821d6ff6db26cb4f3d84a0451
sha512
d381792422d667127c583d6b788b6294735d3bdde178fa0c1c55fab1f26d5f2f2d5854a29f6a6e2cb824e08f549551270e6adc4343f14a6521cfc3d570fa003e
ripemd-160
74958e2b8a75124dd9314d7e37d05fedeb0c7f24
Diameter
57777830
Circumference
181514406.26836
Area
2.6218771269811E+15
Volume
1.0099091394907E+23
Surface area
1.0487508507924E+16
Circumference
181514406.26836
Perimeter
115555660
Area
834569409877225
Diagonal
40855095.395244
Surface area
5007416459263350
Volume
2.4109804743543E+22
Space diagonal
50037068.555539
Perimeter
86666745
Area
3.6137915508753E+14
Altitude
25018534.277769
Surface area
3.6137915508753E+14
Volume
2.8413677378738E+21
Height
13618365.131748