28732021 is an odd 8-digits composite number following 28732020
and preceding 28732022 . In scientific notation, it is written as 2.8732021 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 28031200 positive integers (up to 28732021) that are relatively prime to 28732021.
28732021 has 4 divisors, whose sum is 29432844
The reverse of 28732021 is 12023782
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million seven hundred thirty-two thousand twenty-one
Scientific notation
2.8732021 × 10^7
Engineering notation
2.8732021 × 10^6
Prime Factorization
41 × 700781
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28732021
Product of the distinct prime numbers
The prime factorization of 28732021 is 41 × 700781.
Since it has a total of 2 prime factors.
6 , 2 , 69 , 60 , 950 , 85 , 4238 , 162 , 73630 , 42946 , 438940 , 552542 , 8211089 , 9529766 , 90414837 , 33371228 , 448420571 , 950930727 , 1298963414 , 3017564391
n×2
57464042
n×3
86196063
n×4
114928084
n×5
143660105
n÷2
14366010.5
n÷3
9577340.3333333
n÷3
7183005.25
n÷5
5746404.2
n2
825529030744441
n3
2.3719117447459E+22
n4
6.8149818060186E+29
n5
1.9580820036514E+37
2 √n
5360.2258347946
3 √n
306.28241189652
4 √n
73.213563188761
5 √n
31.022245832059
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
-28732020
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 28732021 can be divided by 4 positive divisors.
The sum of these divisors (counting 28732021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101100110101001110101
3
Ternary
2000001201220221
4
Quaternary
1231212221311
5
Quinary
24323411041
6
Senary
2503454341
8
Octal
155465165
10
Decimal
28732021
12
Duodecimal
97573b1
16
Hexadecimal
1b66a75
20
Vigesimal
8jba11
36
Base36
h3trp
md5
5e6165d4051b333df6bc3826c2dc696e
sha1
d596e2417ebbe559504033d9f48c708d2d8cbcf5
sha256
06543777c211f4d04c9870d3931079d0b20d6174668375bcbdb2cf6caeac3f54
sha512
7589fec39ea022c67c60fd030db620202b18bba7e40f9fc1e959ca486c8f7ea9b576c09db8e4a1b46e06af9d5352e9850225043369d34acacf5f8d4c47d5ecf4
ripemd-160
9672b822307fd8b8c298dbc760aa89091de9c296
Diameter
57464042
Circumference
180528612.19278
Area
2.5934759383118E+15
Volume
9.9354406830094E+22
Surface area
1.0373903753247E+16
Circumference
180528612.19278
Perimeter
114928084
Area
825529030744441
Diagonal
40633213.772589
Surface area
4953174184466646
Volume
2.3719117447459E+22
Space diagonal
49765320.176136
Perimeter
86196063
Area
3.5746455609312E+14
Altitude
24882660.088068
Surface area
3.5746455609312E+14
Volume
2.7953247984764E+21
Height
13544404.590863