20147821 is an odd 8-digits prime number following 20147820
and preceding 20147822 . In scientific notation, it is written as 2.0147821 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20147820 positive integers (up to 20147821) that are relatively prime to 20147821.
20147821 has 2 divisors, whose sum is 20147822
The reverse of 20147821 is 12874102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred forty-seven thousand eight hundred twenty-one
Scientific notation
2.0147821 × 10^7
Engineering notation
2.0147821 × 10^6
Prime Factorization
20147821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20147821
Product of the distinct prime numbers
The prime factorization of 20147821 is 20147821.
Since it has a total of 1 prime factors.
1 , 2 , 25 , 59 , 987 , 783 , 3230 , 5700 , 55826 , 21283 , 413731 , 747850 , 24598 , 152149 , 71045767 , 2091323 , 394845508 , 617124100 , 2899166926 , 9002642337
n×2
40295642
n×3
60443463
n×4
80591284
n×5
100739105
n÷2
10073910.5
n÷3
6715940.3333333
n÷3
5036955.25
n÷5
4029564.2
n2
405934691048041
n3
8.1786994929262E+21
n4
1.6478297339627E+29
n5
3.3200178518358E+36
2 √n
4488.6324197911
3 √n
272.10886735598
4 √n
66.997256807955
5 √n
28.896524845004
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20147822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10073911
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4488.6325311836
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007337
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20147821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20147821) is 20147822, the average is 10073911.
Base
System
Value
2
Binary
1001100110110111001101101
3
Ternary
1101220121121121
4
Quaternary
1030312321231
5
Quinary
20124212241
6
Senary
1555500541
8
Octal
114667155
10
Decimal
20147821
12
Duodecimal
68b7751
16
Hexadecimal
1336e6d
20
Vigesimal
65i9b1
36
Base36
bzu5p
md5
f84de881f0742501d56b01c33357507b
sha1
1563cdc132f37056432417e66d0c8a33c04518db
sha256
5c37a17dbc16a27990469e62a3ddc769414099fb7494d313ac3638b7adc39cb2
sha512
c62548f55e47e5951ab9dbe4ecfcfacc34a793a1954158a2653f44cfce903b7195d0eb3e94b2c3429a97e5e5019e7264e8388b7f51743663a287ae6b2631976c
ripemd-160
46c3e39cc49e2d359a91c960ac7f303ef908daef
Diameter
40295642
Circumference
126592492.87888
Area
1.2752814432338E+15
Volume
3.4258856323861E+22
Surface area
5.1011257729351E+15
Circumference
126592492.87888
Perimeter
80591284
Area
405934691048041
Diagonal
28493321.710465
Surface area
2435608146288246
Volume
8.1786994929262E+21
Space diagonal
34897049.633803
Perimeter
60443463
Area
1.757748773625E+14
Altitude
17448524.816902
Surface area
1.757748773625E+14
Volume
9.6386897878919E+20
Height
9497773.9034885