20131221 (number)

20131221 is an odd 8-digits composite number following 20131220 and preceding 20131222. In scientific notation, it is written as 2.0131221 × 10^7. The sum of its digits is 12. It has a total of 4 prime factors and 16 positive divisors. There are 12155520 positive integers (up to 20131221) that are relatively prime to 20131221.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0131221 × 10^7
Engineering notation 2.0131221 × 10^6

Prime Factorization of 20131221

Prime Factorization 11 × 3 × 313 × 1949

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20131221
Product of the distinct prime numbers

The prime factorization of 20131221 is 11 × 3 × 313 × 1949. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 10, 59, 988, 905, 9098, 4850, 39926, 46691, 713700, 15065, 4169952, 2504076, 398139, 86399798, 837888651, 994685282, 846279533, 7200174189

Basic calculations (n = 20131221)

Multiplication

n×y
n×2 40262442
n×3 60393663
n×4 80524884
n×5 100656105

Division

n÷y
n÷2 10065610.5
n÷3 6710407
n÷3 5032805.25
n÷5 4026244.2

Exponentiation

ny
n2 405266058950841
n3 8.1585005965384E+21
n4 1.6424057853755E+29
n5 3.3063633837072E+36

Nth Root

y√n
2√n 4486.782923209
3√n 272.03411571075
4√n 66.983452607409
5√n 28.891761645284

Divisors of 20131221

1, 3, 11, 33, 313, 939, 1949, 3443, 5847, 10329, 21439, 64317, 610037, 1830111, 6710407, 20131221

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20131220
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20131221 can be divided by 16 positive divisors. The sum of these divisors (counting 20131221) is 1, the average is 0.0625.

Base conversion 20131221

Base System Value
2 Binary 1001100110010110110010101
3 Ternary 1101212202211210
4 Quaternary 1030302312111
5 Quinary 20123144341
6 Senary 1555252033
8 Octal 114626625
10 Decimal 20131221
12 Duodecimal 68aa019
16 Hexadecimal 1332d95
20 Vigesimal 65g811
36 Base36 bzhcl

Cryptographic Hash Functions

md5 007cdc83763da82f5a71cdbcd97e1807
sha1 92b8a01802d0200e242b1f5ec943e43129459d2b
sha256 5d0c06e6595dc682078affcb9679cf4f44da80345c4994cdde0b85b632e4b686
sha512 e9f8804cc1a8ad9bdd4ff0923fb7d13cc79c8ab5d76a4229a49ab92d5eb5ba9f7fdd323937a20b67149388ab5325a578e92fc353533ee44924b65108902feee6
ripemd-160 ede88bcf8cb9f1e4b19f83b27f12a819711ad44c

20131221 as geometric shapes

Circle

Radius = n
Diameter 40262442
Circumference 126488192.00279
Area 1.2731808735492E+15

Sphere

Radius = n
Volume 3.4174247384524E+22
Surface area 5.092723494197E+15
Circumference 126488192.00279

Square

Length = n
Perimeter 80524884
Area 405266058950841
Diagonal 28469845.76533

Cube

Length = n
Surface area 2431596353705046
Volume 8.1585005965384E+21
Space diagonal 34868297.590398

Equilateral Triangle

Length = n
Perimeter 60393663
Area 1.7548535117152E+14
Altitude 17434148.795199

Triangular Pyramid

Length = n
Surface area 1.7548535117152E+14
Volume 9.6148851602113E+20
Height 9489948.5884434