28931613 is an odd 8-digits composite number following 28931612
and preceding 28931614 . In scientific notation, it is written as 2.8931613 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 19287740 positive integers (up to 28931613) that are relatively prime to 28931613.
28931613 has 4 divisors, whose sum is 38575488
The reverse of 28931613 is 31613982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million nine hundred thirty-one thousand six hundred thirteen
Scientific notation
2.8931613 × 10^7
Engineering notation
2.8931613 × 10^6
Prime Factorization
3 × 9643871
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28931613
Product of the distinct prime numbers
The prime factorization of 28931613 is 3 × 9643871.
Since it has a total of 2 prime factors.
2 , 9 , 99 , 88 , 19 , 738 , 1470 , 1897 , 20052 , 70486 , 759419 , 101321 , 3615972 , 2972134 , 21202466 , 60501917 , 735784733 , 231047975 , 9649910396 , 7654076632
n×2
57863226
n×3
86794839
n×4
115726452
n×5
144658065
n÷2
14465806.5
n÷3
9643871
n÷3
7232903.25
n÷5
5786322.6
n2
837038230781769
n3
2.4216866159183E+22
n4
7.0063299979027E+29
n5
2.0270442804961E+37
2 √n
5378.811485821
3 √n
306.98999072574
4 √n
73.340381004062
5 √n
31.065226856663
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
-28931612
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 28931613 can be divided by 4 positive divisors.
The sum of these divisors (counting 28931613) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111011000011101
3
Ternary
2000102212201020
4
Quaternary
1232113120131
5
Quinary
24401302423
6
Senary
2512034353
8
Octal
156273035
10
Decimal
28931613
12
Duodecimal
98329b9
16
Hexadecimal
1b9761d
20
Vigesimal
90g90d
36
Base36
h83rx
md5
6435a56c22b0b6ad6d53e15234fa8ee0
sha1
0f821b41fd2d55e11b38ef5b405fc5529fd67815
sha256
11c0eaed0fc449aa766552b306e7b736a64e4dd526efa6638128d5f28b246fa3
sha512
b02aec3c8df0a1779e4f45797458482871875e91dab81c132cda8deef800c2089b57b8ef4c026d5dce2dd7c8dc8dd570d54edd21b9b9d96378515cf3dc3dd42f
ripemd-160
f202cf70bca4c4cd39e1a2d6b7f2c828e7b8b2c6
Diameter
57863226
Circumference
181782685.71461
Area
2.6296331565978E+15
Volume
1.0143937175821E+23
Surface area
1.0518532626391E+16
Circumference
181782685.71461
Perimeter
115726452
Area
837038230781769
Diagonal
40915479.48593
Surface area
5022229384690614
Volume
2.4216866159183E+22
Space diagonal
50111023.66092
Perimeter
86794839
Area
3.624481858979E+14
Altitude
25055511.83046
Surface area
3.624481858979E+14
Volume
2.8539850467075E+21
Height
13638493.161977