28993385 is an odd 8-digits composite number following 28993384
and preceding 28993386 . In scientific notation, it is written as 2.8993385 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 22134528 positive integers (up to 28993385) that are relatively prime to 28993385.
28993385 has 16 divisors, whose sum is 36418896
The reverse of 28993385 is 58339982
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million nine hundred ninety-three thousand three hundred eighty-five
Scientific notation
2.8993385 × 10^7
Engineering notation
2.8993385 × 10^6
Prime Factorization
37 × 5 × 53 × 2957
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28993385
Product of the distinct prime numbers
The prime factorization of 28993385 is 37 × 5 × 53 × 2957.
Since it has a total of 4 prime factors.
3 , 9 , 93 , 31 , 41 , 208 , 7247 , 6258 , 71593 , 42679 , 338660 , 663967 , 5803811 , 2106520 , 45637997 , 96043134 , 272428107 , 251077998 , 3448847587 , 4577041447
n×2
57986770
n×3
86980155
n×4
115973540
n×5
144966925
n÷2
14496692.5
n÷3
9664461.6666667
n÷3
7248346.25
n÷5
5798677
n2
840616373758225
n3
2.4372314161676E+22
n4
7.0663588783043E+29
n5
2.0487766350684E+37
2 √n
5384.5505847749
3 √n
307.20832059011
4 √n
73.37949703272
5 √n
31.078481039326
1 , 5 , 37 , 53 , 185 , 265 , 1961 , 2957 , 9805 , 14785 , 109409 , 156721 , 547045 , 783605 , 5798677 , 28993385
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
-28993384
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 28993385 can be divided by 16 positive divisors.
The sum of these divisors (counting 28993385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101110100110011101101001
3
Ternary
2000120000110002
4
Quaternary
1232212131221
5
Quinary
24410242020
6
Senary
2513232345
8
Octal
156463551
10
Decimal
28993385
12
Duodecimal
98626b5
16
Hexadecimal
1ba6769
20
Vigesimal
914395
36
Base36
h9fft
md5
6d3cb7b6d2a52bb6a5459a91e3060300
sha1
04f4de4636f849da0b5c70ce8300cec61a75d5b7
sha256
8986e2d146ad242bac59bc5277c8622b7d6a4f5f2b2e273136560091efc84f7c
sha512
3f83efbcaad09bf6ec64bbcfef761c3067e4f7a8f6d2ef49a692d043c0bed6ebe2f0466355c52be973d75c39bd53e7af8dcb7f2367c3a17d85fa0fec40ba160c
ripemd-160
ff56872bdadabb82c2903a549013150ac334fb40
Diameter
57986770
Circumference
182170810.6374
Area
2.6408742242861E+15
Volume
1.0209051082841E+23
Surface area
1.0563496897145E+16
Circumference
182170810.6374
Perimeter
115973540
Area
840616373758225
Diagonal
41002838.286105
Surface area
5043698242549350
Volume
2.4372314161676E+22
Space diagonal
50218015.903405
Perimeter
86980155
Area
3.6399756725589E+14
Altitude
25109007.951703
Surface area
3.6399756725589E+14
Volume
2.8723047694884E+21
Height
13667612.762035