28809745 is an odd 8-digits composite number following 28809744
and preceding 28809746 . In scientific notation, it is written as 2.8809745 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 22528000 positive integers (up to 28809745) that are relatively prime to 28809745.
28809745 has 16 divisors, whose sum is 35361360
The reverse of 28809745 is 54790882
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million eight hundred nine thousand seven hundred forty-five
Scientific notation
2.8809745 × 10^7
Engineering notation
2.8809745 × 10^6
Prime Factorization
5 × 641 × 101 × 89
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28809745
Product of the distinct prime numbers
The prime factorization of 28809745 is 5 × 641 × 101 × 89.
Since it has a total of 4 prime factors.
7 , 7 , 92 , 73 , 848 , 585 , 5651 , 3432 , 45488 , 91610 , 298476 , 271328 , 143153 , 2601916 , 70644875 , 88884 , 170595589 , 578051199 , 3405496285 , 4720250670
n×2
57619490
n×3
86429235
n×4
115238980
n×5
144048725
n÷2
14404872.5
n÷3
9603248.3333333
n÷3
7202436.25
n÷5
5761949
n2
830001406965025
n3
2.3912128884304E+22
n4
6.8890233556392E+29
n5
1.9847100617501E+37
2 √n
5367.4710059767
3 √n
306.55834167641
4 √n
73.263026186315
5 √n
31.039011573962
1 , 5 , 89 , 101 , 445 , 505 , 641 , 3205 , 8989 , 44945 , 57049 , 64741 , 285245 , 323705 , 5761949 , 28809745
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
-28809744
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 28809745 can be divided by 16 positive divisors.
The sum of these divisors (counting 28809745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101101111001101000010001
3
Ternary
2000012200112121
4
Quaternary
1231321220101
5
Quinary
24333402440
6
Senary
2505254241
8
Octal
155715021
10
Decimal
28809745
12
Duodecimal
9794381
16
Hexadecimal
1b79a11
20
Vigesimal
901475
36
Base36
h5hqp
md5
825a391ac3e363dd0632e37fd6734871
sha1
b7c947117ac255846dc3a00c44630dfbb9616383
sha256
01aad721eeebed725883bb83d547f2337b2edd8c0dd77f61ec62e09575e60709
sha512
6b291cbed3b0c3109c86fc5b8ad103e3b5f79bd6a43cab60fed6aa451768b9a669c16ee5806157136f03e416fe5559d065ee2de6e7c1a3fcbcdfdcce8ecc7192
ripemd-160
7691f0108daabb58d9a56880c44a8252d38bcc53
Diameter
57619490
Circumference
181016966.48759
Area
2.6075263225905E+15
Volume
1.0016289124616E+23
Surface area
1.0430105290362E+16
Circumference
181016966.48759
Perimeter
115238980
Area
830001406965025
Diagonal
40743132.10751
Surface area
4980008441790150
Volume
2.3912128884304E+22
Space diagonal
49899942.093103
Perimeter
86429235
Area
3.5940115180427E+14
Altitude
24949971.046552
Surface area
3.5940115180427E+14
Volume
2.8180714144496E+21
Height
13581044.035837