28908643 is an odd 8-digits composite number following 28908642
and preceding 28908644 . In scientific notation, it is written as 2.8908643 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 28418608 positive integers (up to 28908643) that are relatively prime to 28908643.
28908643 has 4 divisors, whose sum is 29398680
The reverse of 28908643 is 34680982
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million nine hundred eight thousand six hundred forty-three
Scientific notation
2.8908643 × 10^7
Engineering notation
2.8908643 × 10^6
Prime Factorization
59 × 489977
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28908643
Product of the distinct prime numbers
The prime factorization of 28908643 is 59 × 489977.
Since it has a total of 2 prime factors.
5 , 9 , 90 , 16 , 718 , 426 , 5616 , 2150 , 48566 , 114 , 321268 , 960856 , 6010745 , 2696296 , 56066290 , 415024 , 803784141 , 346530082 , 7484287649 , 2298612194
n×2
57817286
n×3
86725929
n×4
115634572
n×5
144543215
n÷2
14454321.5
n÷3
9636214.3333333
n÷3
7227160.75
n÷5
5781728.6
n2
835709640101449
n3
2.4159231637351E+22
n4
6.9841060255849E+29
n5
2.0190102776778E+37
2 √n
5376.6758317756
3 √n
306.9087252131
4 √n
73.325819680216
5 √n
31.060292496582
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
-28908642
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 28908643 can be divided by 4 positive divisors.
The sum of these divisors (counting 28908643) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010001110001100011
3
Ternary
2000101201012111
4
Quaternary
1232101301203
5
Quinary
24400034033
6
Senary
2511340151
8
Octal
156216143
10
Decimal
28908643
12
Duodecimal
9821657
16
Hexadecimal
1b91c63
20
Vigesimal
90dbc3
36
Base36
h7m1v
md5
9dcbff148aeaf3faa564d3abd5d7e213
sha1
3b319b4de31dc3fff2383922e8b6378a5118d356
sha256
f661ab71479c1ea086c1157b8a6f1c9dca3d20c66aeff39ba26ded7175e774df
sha512
94a7f7477144f7b3553888b0e5f3daba9e6f5598bd972183ce33924a0399ef4d5afd2b89cb9f4db91e8431e351e0a3beb7763d078751ab63f070940fe1c746a0
ripemd-160
5cf46b5b8445c434833298d9fe06587344d613be
Diameter
57817286
Circumference
181638360.9481
Area
2.6254592658769E+15
Volume
1.011979528377E+23
Surface area
1.0501837063508E+16
Circumference
181638360.9481
Perimeter
115634572
Area
835709640101449
Diagonal
40882995.000402
Surface area
5014257840608694
Volume
2.4159231637351E+22
Space diagonal
50071238.45387
Perimeter
86725929
Area
3.618728892577E+14
Altitude
25035619.226935
Surface area
3.618728892577E+14
Volume
2.8471927531713E+21
Height
13627665.000134