28388216 is an even 8-digits composite number following 28388215
and preceding 28388217 . In scientific notation, it is written as 2.8388216 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors.
There are 13704544 positive integers (up to 28388216) that are relatively prime to 28388216.
28388216 has 16 divisors, whose sum is 55063800
The reverse of 28388216 is 61288382
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million three hundred eighty-eight thousand two hundred sixteen
Scientific notation
2.8388216 × 10^7
Engineering notation
2.8388216 × 10^6
Prime Factorization
2 × 2 × 2 × 29 × 122363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7097054
Product of the distinct prime numbers
The prime factorization of 28388216 is 2 × 2 × 2 × 29 × 122363.
Since it has a total of 5 prime factors.
8 , 2 , 88 , 70 , 409 , 408 , 7668 , 3333 , 28453 , 96348 , 896979 , 697781 , 349705 , 3410227 , 8538410 , 19060806 , 982680107 , 428283834 , 1792122652 , 6359386781
n×2
56776432
n×3
85164648
n×4
113552864
n×5
141941080
n÷2
14194108
n÷3
9462738.6666667
n÷3
7097054
n÷5
5677643.2
n2
805890807662656
n3
2.2877802320342E+22
n4
6.4945999387517E+29
n5
1.8437010589487E+37
2 √n
5328.0593089792
3 √n
305.05585647255
4 √n
72.993556626453
5 √n
30.94764598173
1 , 2 , 4 , 8 , 29 , 58 , 116 , 232 , 122363 , 244726 , 489452 , 978904 , 3548527 , 7097054 , 14194108 , 28388216
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28388215
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28388216 can be divided by 16 positive divisors.
The sum of these divisors (counting 28388216) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101100010010101101111000
3
Ternary
1222102021022102
4
Quaternary
1230102231320
5
Quinary
24231410331
6
Senary
2452242532
8
Octal
154225570
10
Decimal
28388216
12
Duodecimal
9610448
16
Hexadecimal
1b12b78
20
Vigesimal
8h8aag
36
Base36
gwghk
md5
e3836e8ce36376cad6b2410f75eb2bc0
sha1
76baa064e45babb825c0ccdb89577a80b685ddc9
sha256
1b09843f2e55835ea95da9e89200647e50150a2b9fbf56b622a91972b472f73e
sha512
fc25018c590da9eadccd26196edb795fb5c7b69ad8d8fd186697580e1805ca6c323db4e3cd442878af051fc3a13c0768c937eafb029302cd86c76cd0ac377a4f
ripemd-160
0238cd83fa4d87845143efbf0cc62fcebeb17ecd
Diameter
56776432
Circumference
178368421.66824
Area
2.5317806409485E+15
Volume
9.5830314266488E+22
Surface area
1.0127122563794E+16
Circumference
178368421.66824
Perimeter
113552864
Area
805890807662656
Diagonal
40147000.078777
Surface area
4835344845975936
Volume
2.2877802320342E+22
Space diagonal
49169832.44824
Perimeter
85164648
Area
3.4896095605611E+14
Altitude
24584916.22412
Surface area
3.4896095605611E+14
Volume
2.6961748598932E+21
Height
13382333.359592