28291880 is an even 8-digits composite number following 28291879
and preceding 28291881 . In scientific notation, it is written as 2.8291880 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 32 positive divisors.
There are 11160576 positive integers (up to 28291880) that are relatively prime to 28291880.
28291880 has 32 divisors, whose sum is 64535400
The reverse of 28291880 is 08819282
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million two hundred ninety-one thousand eight hundred eighty
Scientific notation
2.8291880 × 10^7
Engineering notation
2.8291880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 73 × 9689
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
7072970
Product of the distinct prime numbers
The prime factorization of 28291880 is 2 × 2 × 2 × 5 × 73 × 9689.
Since it has a total of 6 prime factors.
8 , 9 , 3 , 58 , 441 , 797 , 364 , 4166 , 64672 , 18565 , 478792 , 864228 , 5589188 , 1776805 , 22527214 , 88649674 , 920611018 , 49114218 , 4044048251 , 3672426034
n×2
56583760
n×3
84875640
n×4
113167520
n×5
141459400
n÷2
14145940
n÷3
9430626.6666667
n÷3
7072970
n÷5
5658376
n2
800430473934400
n3
2.2645682916895E+22
n4
6.4068894360285E+29
n5
1.8126294709739E+37
2 √n
5319.0111863015
3 √n
304.71039427354
4 √n
72.931551377312
5 √n
30.926613116385
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 73 , 146 , 292 , 365 , 584 , 730 , 1460 , 2920 , 9689 , 19378 , 38756 , 48445 , 77512 , 96890 , 193780 , 387560 , 707297 , 1414594 , 2829188 , 3536485 , 5658376 , 7072970 , 14145940 , 28291880
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28291879
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28291880 can be divided by 32 positive divisors.
The sum of these divisors (counting 28291880) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101011111011001100101000
3
Ternary
1222020101011102
4
Quaternary
1223323030220
5
Quinary
24220320010
6
Senary
2450220532
8
Octal
153731450
10
Decimal
28291880
12
Duodecimal
9584748
16
Hexadecimal
1afb328
20
Vigesimal
8gg9e0
36
Base36
gue5k
md5
178fbf02a68b0478b181f006743e5e2d
sha1
34e11cc70a62e834a192cc188b52e5c15989e01e
sha256
1b85ef4b86ad6a64d372974b44b1dba32b182bf038dacd54de603c66d9ef2bd2
sha512
17364dbf2652d854390e86e19775412c1403d4a58707cb5e3ec869cb399cf53e2bac2a0c8fb323414b8691456140ec4c3f2f62363e11ec0307dbf2edcd23f6e8
ripemd-160
02975f49f4a720a1c3235239cb7067644544bec9
Diameter
56583760
Circumference
177763124.72849
Area
2.5146264966217E+15
Volume
9.4858014782989E+22
Surface area
1.0058505986487E+16
Circumference
177763124.72849
Perimeter
113167520
Area
800430473934400
Diagonal
40010760.401032
Surface area
4802582843606400
Volume
2.2645682916895E+22
Space diagonal
49002973.601642
Perimeter
84875640
Area
3.465965621952E+14
Altitude
24501486.800821
Surface area
3.465965621952E+14
Volume
2.6688193258562E+21
Height
13336920.133677