Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20121221 (number)

20121221 is an odd 8-digits composite number following 20121220 and preceding 20121222. In scientific notation, it is written as 2.0121221 × 10^7. The sum of its digits is 11. It has a total of 2 prime factors and 4 positive divisors. There are 19866444 positive integers (up to 20121221) that are relatively prime to 20121221.

Interesting facts

20121221 has 4 divisors, whose sum is 20376000
The reverse of 20121221 is 12212102
Previous prime number is 79

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 11
Digital Root 2

Name

Name	twenty million one hundred twenty-one thousand two hundred twenty-one

Notation

Scientific notation	2.0121221 × 10^7
Engineering notation	2.0121221 × 10^6

Prime Factorization of 20121221

Prime Factorization 79 × 254699

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121221	Product of the distinct prime numbers

The prime factorization of 20121221 is 79 × 254699. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 77, 99, 668, 393, 9832, 9430, 14879, 13227, 255235, 135801, 2259837, 3278177, 6681080, 81621569, 882275205, 197761704, 6001964146, 3969701672

Basic calculations (n = 20121221)

Multiplication

n×y

n×2	40242442
n×3	60363663
n×4	80484884
n×5	100606105

Division

n÷y

n÷2	10060610.5
n÷3	6707073.6666667
n÷3	5030305.25
n÷5	4024244.2

Exponentiation

n^y

n²	404863534530841
n³	8.1463486531362E+21
n⁴	1.6391448159281E+29
n⁵	3.2981595092293E+36

Nth Root

^y√n

²√n	4485.6684005842
³√n	271.98906476366
⁴√n	66.975132702998
⁵√n	28.888890731091

Divisors of 20121221

1, 79, 254699, 20121221

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	-20121220	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 20121221 can be divided by 4 positive divisors. The sum of these divisors (counting 20121221) is 1, the average is 0.25.

Base conversion 20121221

Base	System	Value
2	Binary	1001100110000011010000101
3	Ternary	1101212021010102
4	Quaternary	1030300122011
5	Quinary	20122334341
6	Senary	1555133445
8	Octal	114603205
10	Decimal	20121221
12	Duodecimal	68a4285
16	Hexadecimal	1330685
20	Vigesimal	65f311
36	Base36	bz9mt

Cryptographic Hash Functions

md5	1f69b3d54c2f95a014ea3cc131a34d5b
sha1	3374f2acd0ecdafc217166e8e27b7cead7682280
sha256	85bdb6698bee2462d86c77cb49941bf1cc38abad4287c39ee8238b8ecc22b13b
sha512	bdc289929c22668e7ec38121353d83510a1db8fa93aa446144d052ec581ef1a7104847533227bf00a6f591abbb0fe3d1b93ce495c3126c182938819e3575c9ba
ripemd-160	9d88bc575ffbaa94b1253ee11d75f4a856179332

20121221 as geometric shapes

Circle

Radius = n

Diameter	40242442
Circumference	126425360.14971
Area	1.2719163057885E+15

Sphere

Radius = n

Volume	3.4123345443032E+22
Surface area	5.087665223154E+15
Circumference	126425360.14971

Square

Length = n

Perimeter	80484884
Area	404863534530841
Diagonal	28455703.629706

Cube

Length = n

Surface area	2429181207185046
Volume	8.1463486531362E+21
Space diagonal	34850977.082322

Equilateral Triangle

Length = n

Perimeter	60363663
Area	1.7531105298483E+14
Altitude	17425488.541161

Triangular Pyramid

Length = n

Surface area	1.7531105298483E+14
Volume	9.6005639575708E+20
Height	9485234.5432354