28572021 is an odd 8-digits composite number following 28572020
and preceding 28572022 . In scientific notation, it is written as 2.8572021 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 19047960 positive integers (up to 28572021) that are relatively prime to 28572021.
28572021 has 6 divisors, whose sum is 32099522
The reverse of 28572021 is 12027582
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million five hundred seventy-two thousand twenty-one
Scientific notation
2.8572021 × 10^7
Engineering notation
2.8572021 × 10^6
Prime Factorization
9 × 9 × 352741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
3174669
Product of the distinct prime numbers
The prime factorization of 28572021 is 9 × 9 × 352741.
Since it has a total of 3 prime factors.
10 , 9 , 10 , 62 , 645 , 80 , 4126 , 7493 , 80421 , 5660 , 542172 , 530661 , 1194315 , 2124102 , 35569365 , 83441807 , 377713869 , 750433402 , 1704550226 , 699651031
n×2
57144042
n×3
85716063
n×4
114288084
n×5
142860105
n÷2
14286010.5
n÷3
9524007
n÷3
7143005.25
n÷5
5714404.2
n2
816360384024441
n3
2.3325066035914E+22
n4
6.6644427660453E+29
n5
1.9041659866475E+37
2 √n
5345.2802545797
3 √n
305.71282168879
4 √n
73.111423557333
5 √n
30.987617897966
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28572020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28572021 can be divided by 6 positive divisors.
The sum of these divisors (counting 28572021) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101100111111100101110101
3
Ternary
1222202121110000
4
Quaternary
1230333211311
5
Quinary
24303301041
6
Senary
2500221513
8
Octal
154774565
10
Decimal
28572021
12
Duodecimal
969a899
16
Hexadecimal
1b3f975
20
Vigesimal
8iba11
36
Base36
h0eb9
md5
b14d3acf8bcc6421ca20cad94002b85b
sha1
4be764ed7c0ce98132c6dee9a56130bedb26a2f8
sha256
2b3b2562e773c80b3c1ff0c701f18ac0499a285ef06b7e10f8da9ae620c5bba4
sha512
3c4e6f4e6be81ac3515e2472df761ce06d415c085ecaa20bb66756a2cd18d38734892e10c1db641cc8d77a43eb879e0016c41428cf16df6823c5c3d08a1d223b
ripemd-160
c176cd7965e602a3e27f71c93f8e8ad20607e290
Diameter
57144042
Circumference
179523302.54363
Area
2.5646717851329E+15
Volume
9.7703808137234E+22
Surface area
1.0258687140532E+16
Circumference
179523302.54363
Perimeter
114288084
Area
816360384024441
Diagonal
40406939.602609
Surface area
4898162304146646
Volume
2.3325066035914E+22
Space diagonal
49488192.046925
Perimeter
85716063
Area
3.5349441560419E+14
Altitude
24744096.023462
Surface area
3.5349441560419E+14
Volume
2.7488853942698E+21
Height
13468979.867536