28687049 is an odd 8-digits composite number following 28687048
and preceding 28687050 . In scientific notation, it is written as 2.8687049 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 27439764 positive integers (up to 28687049) that are relatively prime to 28687049.
28687049 has 4 divisors, whose sum is 29934336
The reverse of 28687049 is 94078682
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million six hundred eighty-seven thousand forty-nine
Scientific notation
2.8687049 × 10^7
Engineering notation
2.8687049 × 10^6
Prime Factorization
23 × 1247263
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28687049
Product of the distinct prime numbers
The prime factorization of 28687049 is 23 × 1247263.
Since it has a total of 2 prime factors.
8 , 4 , 54 , 81 , 840 , 719 , 9682 , 3744 , 14287 , 4747 , 949831 , 865835 , 9010838 , 9679647 , 15735297 , 67461604 , 617454764 , 600427233 , 2711875873 , 5639106677
n×2
57374098
n×3
86061147
n×4
114748196
n×5
143435245
n÷2
14343524.5
n÷3
9562349.6666667
n÷3
7171762.25
n÷5
5737409.8
n2
822946780328401
n3
2.3607914611673E+22
n4
6.7724140325288E+29
n5
1.9428057319944E+37
2 √n
5356.0292194871
3 √n
306.12252842934
4 √n
73.184897482248
5 √n
31.012528403983
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
-28687048
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 28687049 can be divided by 4 positive divisors.
The sum of these divisors (counting 28687049) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011011101011001001
3
Ternary
1222222110020022
4
Quaternary
1231123223021
5
Quinary
24320441144
6
Senary
2502510225
8
Octal
155335311
10
Decimal
28687049
12
Duodecimal
9735375
16
Hexadecimal
1b5bac9
20
Vigesimal
8j5hc9
36
Base36
h2v2h
md5
63112145f54d1a29ae873d1372b8231a
sha1
abcf6362b2dc4531ef7bb513d085aefa222f2a17
sha256
dc33b2e664e7ce85626d6cacce7643dd583eeeae09e2f95a71d6b933b8532a5a
sha512
fde66a944fecb0e268f088c84f17075b22b2a9debbb460f5f42d1be1af3394f9c8ef08abc6f33a676de470df42fd314c9fe4eb07c60737e4662916b43e1b1526
ripemd-160
b1a63ca061d53f3ba19eaaf5fd09700bb78f6f6f
Diameter
57374098
Circumference
180246044.78314
Area
2.5853635593751E+15
Volume
9.888860148081E+22
Surface area
1.03414542375E+16
Circumference
180246044.78314
Perimeter
114748196
Area
822946780328401
Diagonal
40569613.760262
Surface area
4937680681970406
Volume
2.3607914611673E+22
Space diagonal
49687426.387218
Perimeter
86061147
Area
3.563464088635E+14
Altitude
24843713.193609
Surface area
3.563464088635E+14
Volume
2.7822194185978E+21
Height
13523204.586754