20160821 is an odd 8-digits prime number following 20160820
and preceding 20160822 . In scientific notation, it is written as 2.0160821 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 20160820 positive integers (up to 20160821) that are relatively prime to 20160821.
20160821 has 2 divisors, whose sum is 20160822
The reverse of 20160821 is 12806102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred sixty thousand eight hundred twenty-one
Scientific notation
2.0160821 × 10^7
Engineering notation
2.0160821 × 10^6
Prime Factorization
20160821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20160821
Product of the distinct prime numbers
The prime factorization of 20160821 is 20160821.
Since it has a total of 1 prime factors.
5 , 2 , 87 , 22 , 220 , 351 , 4617 , 199 , 4507 , 31794 , 502726 , 391580 , 8154103 , 665346 , 35783146 , 16495237 , 163724258 , 549105958 , 9635834490 , 5281071612
n×2
40321642
n×3
60482463
n×4
80643284
n×5
100804105
n÷2
10080410.5
n÷3
6720273.6666667
n÷3
5040205.25
n÷5
4032164.2
n2
406458703394041
n3
8.1945411630194E+21
n4
1.6520867756476E+29
n5
3.3307425760299E+36
2 √n
4490.0802888144
3 √n
272.167379138
4 √n
67.008061371856
5 √n
28.900252870053
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20160822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10080411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4490.080400171
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007977
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20160821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20160821) is 20160822, the average is 10080411.
Base
System
Value
2
Binary
1001100111010000100110101
3
Ternary
1101221021110002
4
Quaternary
1030322010311
5
Quinary
20130121241
6
Senary
2000041045
8
Octal
114720465
10
Decimal
20160821
12
Duodecimal
6903185
16
Hexadecimal
133a135
20
Vigesimal
660211
36
Base36
c046t
md5
be40b6f42f10d0fa5ad3b39a0c80c2a6
sha1
a475224bc7eaf07207f89e259b0d1aa0f624b26f
sha256
e9f04df300c359818a0b814768c90b95065d3defbc44bb5554b9008ad31765f5
sha512
b1bbb8890afcf0b7589d7e3970f8d4ce419a8ab5f1564f2bf0f5ecf35a864a74cae47f720f212c9c33a258f0a67906756d4ccc2ddc5ee79a8dc7fca054026baf
ripemd-160
93ca432d0cf02874a37a66120fd6b0e2bd49eeec
Diameter
40321642
Circumference
126674174.28788
Area
1.2769276765704E+15
Volume
3.4325213756374E+22
Surface area
5.1077107062814E+15
Circumference
126674174.28788
Perimeter
80643284
Area
406458703394041
Diagonal
28511706.486776
Surface area
2438752220364246
Volume
8.1945411630194E+21
Space diagonal
34919566.294302
Perimeter
60482463
Area
1.7600178136426E+14
Altitude
17459783.147151
Surface area
1.7600178136426E+14
Volume
9.6573593751388E+20
Height
9503902.1622588