20121218 (number)

20121218 is an even 8-digits composite number following 20121217 and preceding 20121219. In scientific notation, it is written as 2.0121218 × 10^7. The sum of its digits is 17. It has a total of 4 prime factors and 16 positive divisors. There are 9259536 positive integers (up to 20121218) that are relatively prime to 20121218.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121218 × 10^7
Engineering notation 2.0121218 × 10^6

Prime Factorization of 20121218

Prime Factorization 2 × 13 × 1847 × 419

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121218
Product of the distinct prime numbers

The prime factorization of 20121218 is 2 × 13 × 1847 × 419. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 99, 70, 368, 405, 9500, 4695, 57260, 86652, 45056, 370536, 2172428, 83426, 98867829, 6397837, 173075727, 953953092, 6861731949, 807465575

Basic calculations (n = 20121218)

Multiplication

n×y
n×2 40242436
n×3 60363654
n×4 80484872
n×5 100606090

Division

n÷y
n÷2 10060609
n÷3 6707072.6666667
n÷3 5030304.5
n÷5 4024243.6

Exponentiation

ny
n2 404863413803524
n3 8.1463450093649E+21
n4 1.6391438383664E+29
n5 3.2981570505128E+36

Nth Root

y√n
2√n 4485.6680661859
3√n 271.98905124614
4√n 66.975130206562
5√n 28.888889869645

Divisors of 20121218

1, 2, 13, 26, 419, 838, 1847, 3694, 5447, 10894, 24011, 48022, 773893, 1547786, 10060609, 20121218

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 -20121217
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 20121218 can be divided by 16 positive divisors. The sum of these divisors (counting 20121218) is 1, the average is 0.0625.

Base conversion 20121218

Base System Value
2 Binary 1001100110000011010000010
3 Ternary 1101212021010022
4 Quaternary 1030300122002
5 Quinary 20122334333
6 Senary 1555133442
8 Octal 114603202
10 Decimal 20121218
12 Duodecimal 68a4282
16 Hexadecimal 1330682
20 Vigesimal 65f30i
36 Base36 bz9mq

Cryptographic Hash Functions

md5 b6ff587ca3157bb34a380cce1a52e76a
sha1 6f71e92f874e8079dfff7b3288408ee33b904c97
sha256 ed08d265b082b07cbb44ef7906892a5c353280a6ab6bf712e6c74329686db8ac
sha512 091ad4b74f5f9e83f4a3a12efa0f33de82a0a5c3fff4b6bfa746ea53753318aa5a281bf4c4602339501ce6100f859d0a2a9d1a63f4d7804ee1000ef3152582de
ripemd-160 83bab864370dae13b358b49693f09575894520d3

20121218 as geometric shapes

Circle

Radius = n
Diameter 40242436
Circumference 126425341.30016
Area 1.2719159265124E+15

Sphere

Radius = n
Volume 3.4123330180038E+22
Surface area 5.0876637060497E+15
Circumference 126425341.30016

Square

Length = n
Perimeter 80484872
Area 404863413803524
Diagonal 28455699.387066

Cube

Length = n
Surface area 2429180482821144
Volume 8.1463450093649E+21
Space diagonal 34850971.886169

Equilateral Triangle

Length = n
Perimeter 60363654
Area 1.7531100070837E+14
Altitude 17425485.943085

Triangular Pyramid

Length = n
Surface area 1.7531100070837E+14
Volume 9.6005596633452E+20
Height 9485233.1290219