28215549 is an odd 8-digits composite number following 28215548
and preceding 28215550 . In scientific notation, it is written as 2.8215549 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 17408160 positive integers (up to 28215549) that are relatively prime to 28215549.
28215549 has 16 divisors, whose sum is 33776640
The reverse of 28215549 is 94551282
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million two hundred fifteen thousand five hundred forty-nine
Scientific notation
2.8215549 × 10^7
Engineering notation
2.8215549 × 10^6
Prime Factorization
23 × 9 × 31 × 4397
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28215549
Product of the distinct prime numbers
The prime factorization of 28215549 is 23 × 9 × 31 × 4397.
Since it has a total of 4 prime factors.
5 , 6 , 66 , 51 , 947 , 952 , 7293 , 1378 , 10070 , 48414 , 636704 , 740597 , 8487979 , 5548358 , 95850560 , 17140231 , 681486031 , 437328040 , 1246509016 , 2366434542
n×2
56431098
n×3
84646647
n×4
112862196
n×5
141077745
n÷2
14107774.5
n÷3
9405183
n÷3
7053887.25
n÷5
5643109.8
n2
796117205371401
n3
2.24628840179E+22
n4
6.3380260468837E+29
n5
1.7883088448912E+37
2 √n
5311.8310402346
3 √n
304.43611300936
4 √n
72.882309514961
5 √n
30.909907184897
1 , 9 , 23 , 31 , 207 , 279 , 713 , 4397 , 6417 , 39573 , 101131 , 136307 , 910179 , 1226763 , 3135061 , 28215549
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
-28215548
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 28215549 can be divided by 16 positive divisors.
The sum of these divisors (counting 28215549) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011101000100011111101
3
Ternary
1222002111110100
4
Quaternary
1223220203331
5
Quinary
24210344144
6
Senary
2444431313
8
Octal
153504375
10
Decimal
28215549
12
Duodecimal
9548539
16
Hexadecimal
1ae88fd
20
Vigesimal
8g6ih9
36
Base36
gsr99
md5
006e41c77187a5974985153515a7d6dd
sha1
64146b94ac0de3eade38fc495a68c23481630e15
sha256
29125ab2a2884d17c3d4af875de346ae693ebd3238fd94e3d89c50d2e0328624
sha512
7e0b85194f597bdf00c023107c1625ba476379e2bbf96b0d8e4df5d2e2dff08703ef2bda84e027dade0a1fa60af8f4d2ddc5308438c3413301c5d5445ecb867a
ripemd-160
a8d6ca1bd53a78ede686ec9fd440d6d8ce9225c6
Diameter
56431098
Circumference
177283522.91081
Area
2.5010759637912E+15
Volume
9.4092308545432E+22
Surface area
1.0004303855165E+16
Circumference
177283522.91081
Perimeter
112862196
Area
796117205371401
Diagonal
39902812.065603
Surface area
4776703232228406
Volume
2.24628840179E+22
Space diagonal
48870764.431449
Perimeter
84646647
Area
3.4472886212075E+14
Altitude
24435382.215725
Surface area
3.4472886212075E+14
Volume
2.6472762690106E+21
Height
13300937.355201