28989867 is an odd 8-digits composite number following 28989866
and preceding 28989868 . In scientific notation, it is written as 2.8989867 × 10^7.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 17888640 positive integers (up to 28989867) that are relatively prime to 28989867.
28989867 has 16 divisors, whose sum is 41637888
The reverse of 28989867 is 76898982
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
twenty-eight million nine hundred eighty-nine thousand eight hundred sixty-seven
Scientific notation
2.8989867 × 10^7
Engineering notation
2.8989867 × 10^6
Prime Factorization
23 × 3 × 31 × 13553
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28989867
Product of the distinct prime numbers
The prime factorization of 28989867 is 23 × 3 × 31 × 13553.
Since it has a total of 4 prime factors.
1 , 4 , 54 , 9 , 122 , 146 , 9755 , 2930 , 54667 , 49919 , 194804 , 823653 , 7103699 , 2330919 , 86501760 , 23150705 , 352025687 , 661898771 , 9322084536 , 9985295310
n×2
57979734
n×3
86969601
n×4
115959468
n×5
144949335
n÷2
14494933.5
n÷3
9663289
n÷3
7247466.75
n÷5
5797973.4
n2
840412388677689
n3
2.4363443372919E+22
n4
7.0629298304294E+29
n5
2.0475339641448E+37
2 √n
5384.2238995049
3 √n
307.19589473748
4 √n
73.377271000664
5 √n
31.077726802432
1 , 3 , 23 , 31 , 69 , 93 , 713 , 2139 , 13553 , 40659 , 311719 , 420143 , 935157 , 1260429 , 9663289 , 28989867
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28989866
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28989867 can be divided by 16 positive divisors.
The sum of these divisors (counting 28989867) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101110100101100110101011
3
Ternary
2000112211121210
4
Quaternary
1232211212223
5
Quinary
24410133432
6
Senary
2513204203
8
Octal
156454653
10
Decimal
28989867
12
Duodecimal
9860663
16
Hexadecimal
1ba59ab
20
Vigesimal
913ed7
36
Base36
h9cq3
md5
6ae91ff849c5fb083be2c4c7eba26f45
sha1
e7bd19d5ccf7e722e4d362604c463c9cd2354e1a
sha256
71f606e05f9541acaac741a6c35859a0058f98bb7d5987539c0c94aac20b205f
sha512
ba84701295e72030621c272cc2ec96bc95d054ff2d56c135b90879683fc4890b344306cc6940aad569de5f89ee96912432f1d6fd89ba467e95e6ea65cb4bb0db
ripemd-160
4e722f338b2da7cd5a06beb18317012b8cc5c52a
Diameter
57979734
Circumference
182148706.39149
Area
2.6402333862557E+15
Volume
1.0205335295535E+23
Surface area
1.0560933545023E+16
Circumference
182148706.39149
Perimeter
115959468
Area
840412388677689
Diagonal
40997863.082792
Surface area
5042474332066134
Volume
2.4363443372919E+22
Space diagonal
50211922.548664
Perimeter
86969601
Area
3.6390923912502E+14
Altitude
25105961.274332
Surface area
3.6390923912502E+14
Volume
2.8712593370075E+21
Height
13665954.360931