20156221 is an odd 8-digits composite number following 20156220
and preceding 20156222 . In scientific notation, it is written as 2.0156221 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20091100 positive integers (up to 20156221) that are relatively prime to 20156221.
20156221 has 4 divisors, whose sum is 20221344
The reverse of 20156221 is 12265102
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred fifty-six thousand two hundred twenty-one
Scientific notation
2.0156221 × 10^7
Engineering notation
2.0156221 × 10^6
Prime Factorization
311 × 64811
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20156221
Product of the distinct prime numbers
The prime factorization of 20156221 is 311 × 64811.
Since it has a total of 2 prime factors.
1 , 7 , 51 , 32 , 526 , 393 , 9360 , 714 , 69149 , 18694 , 469777 , 185357 , 7456571 , 977607 , 33267740 , 52925904 , 403069044 , 245771620 , 1267890669 , 2261662657
n×2
40312442
n×3
60468663
n×4
80624884
n×5
100781105
n÷2
10078110.5
n÷3
6718740.3333333
n÷3
5039055.25
n÷5
4031244.2
n2
406273245000841
n3
8.1889333126241E+21
n4
1.6505794960351E+29
n5
3.3269445100153E+36
2 √n
4489.5680193088
3 √n
272.14667784522
4 √n
67.004238815979
5 √n
28.898933942635
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
-20156220
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 20156221 can be divided by 4 positive divisors.
The sum of these divisors (counting 20156221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000111100111101
3
Ternary
1101221001010201
4
Quaternary
1030320330331
5
Quinary
20124444341
6
Senary
2000003501
8
Octal
114707475
10
Decimal
20156221
12
Duodecimal
6900591
16
Hexadecimal
1338f3d
20
Vigesimal
65jab1
36
Base36
c00n1
md5
e36460941e8c17bee1868b1b99976819
sha1
fdcd1276c38eba7d2a23baae8ad7639882b2b00c
sha256
8e372da9071717536f4cc6e71bba12b0ed0dcfb5b5985aae3d71313192ff1ba3
sha512
34f7b37016276d933ba26abc3fe48bea8098b84b78b444b57cd70389ad481fdf0994d228d73365c41bdd5c1a0dfa444881dd3889521181325e8a914196848f3e
ripemd-160
dc1ad656178d17ed16e38f4c74d91cc64660a086
Diameter
40312442
Circumference
126645271.63546
Area
1.2763450418447E+15
Volume
3.4301723647569E+22
Surface area
5.1053801673789E+15
Circumference
126645271.63546
Perimeter
80624884
Area
406273245000841
Diagonal
28505201.104389
Surface area
2437639470005046
Volume
8.1889333126241E+21
Space diagonal
34911598.860587
Perimeter
60468663
Area
1.7592147552433E+14
Altitude
17455799.430293
Surface area
1.7592147552433E+14
Volume
9.6507504600682E+20
Height
9501733.7014631