28661649 is an odd 8-digits composite number following 28661648
and preceding 28661650 . In scientific notation, it is written as 2.8661649 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 18892896 positive integers (up to 28661649) that are relatively prime to 28661649.
28661649 has 8 divisors, whose sum is 38645280
The reverse of 28661649 is 94616682
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million six hundred sixty-one thousand six hundred forty-nine
Scientific notation
2.8661649 × 10^7
Engineering notation
2.8661649 × 10^6
Prime Factorization
3 × 89 × 107347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28661649
Product of the distinct prime numbers
The prime factorization of 28661649 is 3 × 89 × 107347.
Since it has a total of 3 prime factors.
1 , 2 , 63 , 73 , 207 , 552 , 1154 , 4582 , 87747 , 71976 , 477301 , 870434 , 4640188 , 8443937 , 15200085 , 1673329 , 354921361 , 35329586 , 8326520263 , 8153477527
n×2
57323298
n×3
85984947
n×4
114646596
n×5
143308245
n÷2
14330824.5
n÷3
9553883
n÷3
7165412.25
n÷5
5732329.8
n2
821490123399201
n3
2.3545261573835E+22
n4
6.7484602284243E+29
n5
1.9342199835756E+37
2 √n
5353.6575348074
3 √n
306.03215305695
4 √n
73.168692313088
5 √n
31.007034654149
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28661648
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28661649 can be divided by 8 positive divisors.
The sum of these divisors (counting 28661649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101010101011110010001
3
Ternary
1222221011101120
4
Quaternary
1231111132101
5
Quinary
24314133044
6
Senary
2502152453
8
Octal
155253621
10
Decimal
28661649
12
Duodecimal
9722729
16
Hexadecimal
1b55791
20
Vigesimal
8j2e29
36
Base36
h2bgx
md5
a23191e1762d45075d9eed80abd8acd3
sha1
d54b4907edcddda53f17a1d11eb121cff8b37024
sha256
68dc6f6cb54500720ac3483f78d328a1e45f18b870d56fbd66e4a1fbc2769958
sha512
60cfc0d2cf6f39633996fe1ce9906690ceabf2518aa3d895de486e365871b26f3b6e77a18dfb676203d696547915720952246f8ac2ffab868699d8981f6b1d96
ripemd-160
acfbd6dd4b4b9bf89e94fd92f666b7e50940334c
Diameter
57323298
Circumference
180086451.87634
Area
2.5807873366675E+15
Volume
9.8626161049612E+22
Surface area
1.032314934667E+16
Circumference
180086451.87634
Perimeter
114646596
Area
821490123399201
Diagonal
40533692.735777
Surface area
4928940740395206
Volume
2.3545261573835E+22
Space diagonal
49643432.296706
Perimeter
85984947
Area
3.5571565791086E+14
Altitude
24821716.148353
Surface area
3.5571565791086E+14
Volume
2.7748356872782E+21
Height
13511230.911926