28508749 is an odd 8-digits composite number following 28508748
and preceding 28508750 . In scientific notation, it is written as 2.8508749 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 28481436 positive integers (up to 28508749) that are relatively prime to 28508749.
28508749 has 4 divisors, whose sum is 28536064
The reverse of 28508749 is 94780582
Previous prime number is 1087
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million five hundred eight thousand seven hundred forty-nine
Scientific notation
2.8508749 × 10^7
Engineering notation
2.8508749 × 10^6
Prime Factorization
1087 × 26227
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28508749
Product of the distinct prime numbers
The prime factorization of 28508749 is 1087 × 26227.
Since it has a total of 2 prime factors.
2 , 4 , 23 , 94 , 183 , 725 , 6275 , 7459 , 59023 , 85921 , 946410 , 593046 , 7424361 , 923595 , 10246407 , 63214928 , 354665569 , 261136090 , 2869843312 , 4783765900
n×2
57017498
n×3
85526247
n×4
114034996
n×5
142543745
n÷2
14254374.5
n÷3
9502916.3333333
n÷3
7127187.25
n÷5
5701749.8
n2
812748769545001
n3
2.3170450671017E+22
n4
6.6056056239691E+29
n5
1.8831755272672E+37
2 √n
5339.3584820651
3 √n
305.48699053411
4 √n
73.070914063429
5 √n
30.97388146964
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
-28508748
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 28508749 can be divided by 4 positive divisors.
The sum of these divisors (counting 28508749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100110000001001001101
3
Ternary
1222122101122121
4
Quaternary
1230300021031
5
Quinary
24244234444
6
Senary
2455012541
8
Octal
154601115
10
Decimal
28508749
12
Duodecimal
966a151
16
Hexadecimal
1b3024d
20
Vigesimal
8i3bh9
36
Base36
gz1hp
md5
0d9ffb2ff716c54b7c558cbc4bb16e82
sha1
6be785dedbef4ba143290e67638ad5f2d585d9b2
sha256
1aef3e4cbc14d3e6b28dbcd8644acad670e625dbd1f19819d1d662f25c3f36e5
sha512
514e99b8885b57b40bb23978712b884ba5627f19d74f848353ff4f08fae759e9327b11eba29f3f27980005b50a9f86de6cb5d4a759a6e4131f253e4d8e9dd9c1
ripemd-160
646ba1ff13178014cb0885198967c2f9c4db029e
Diameter
57017498
Circumference
179125752.84287
Area
2.5533255636167E+15
Volume
9.7056156811243E+22
Surface area
1.0213302254467E+16
Circumference
179125752.84287
Perimeter
114034996
Area
812748769545001
Diagonal
40317459.48209
Surface area
4876492617270006
Volume
2.3170450671017E+22
Space diagonal
49378601.728228
Perimeter
85526247
Area
3.5193054066026E+14
Altitude
24689300.864114
Surface area
3.5193054066026E+14
Volume
2.7306637987708E+21
Height
13439153.160697