28949905 is an odd 8-digits composite number following 28949904
and preceding 28949906 . In scientific notation, it is written as 2.8949905 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 23159920 positive integers (up to 28949905) that are relatively prime to 28949905.
28949905 has 4 divisors, whose sum is 34739892
The reverse of 28949905 is 50994982
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-eight million nine hundred forty-nine thousand nine hundred five
Scientific notation
2.8949905 × 10^7
Engineering notation
2.8949905 × 10^6
Prime Factorization
5 × 5789981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28949905
Product of the distinct prime numbers
The prime factorization of 28949905 is 5 × 5789981.
Since it has a total of 2 prime factors.
10 , 1 , 67 , 49 , 483 , 342 , 5198 , 4841 , 7695 , 10444 , 329269 , 416286 , 8966708 , 8776115 , 51571006 , 7604194 , 481330969 , 673679662 , 7498061552 , 1958028407
n×2
57899810
n×3
86849715
n×4
115799620
n×5
144749525
n÷2
14474952.5
n÷3
9649968.3333333
n÷3
7237476.25
n÷5
5789981
n2
838096999509025
n3
2.4262828516571E+22
n4
7.0240658058603E+29
n5
2.033460377934E+37
2 √n
5380.5115927763
3 √n
307.05467519238
4 √n
73.351970612767
5 √n
31.069154058891
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
-28949904
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 28949905 can be divided by 4 positive divisors.
The sum of these divisors (counting 28949905) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110011011110110010001
3
Ternary
2000110210210201
4
Quaternary
1232123312101
5
Quinary
24402344110
6
Senary
2512255201
8
Octal
156336621
10
Decimal
28949905
12
Duodecimal
9841501
16
Hexadecimal
1b9bd91
20
Vigesimal
90ief5
36
Base36
h8hw1
md5
c988c70e4502ad10702954042d02b0bd
sha1
6f2cf93ca14e124a120a36781d2b2ceec78b95db
sha256
074002ec7a2d734905abbe1cd6ecd5cbbc5e7e38ecf25e62ce5006c0c11fa293
sha512
95d88dea3d82143d85510fb3d05984f7b0bc007a12abd33d037a8f93058f71401b635cd15905329c528576084f9e6ea8ce70592423a865297e03f36637756150
ripemd-160
6279f0bd13c59c41cfb8df0d229ea2a1d4de2a6a
Diameter
57899810
Circumference
181897617.74024
Area
2.6329593766532E+15
Volume
1.0163189843063E+23
Surface area
1.0531837506613E+16
Circumference
181897617.74024
Perimeter
115799620
Area
838096999509025
Diagonal
40941348.280413
Surface area
5028581997054150
Volume
2.4262828516571E+22
Space diagonal
50142706.334292
Perimeter
86849715
Area
3.6290664620516E+14
Altitude
25071353.167146
Surface area
3.6290664620516E+14
Volume
2.8594017624723E+21
Height
13647116.093471