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

20181213 (number)

20181213 is an odd 8-digits composite number following 20181212 and preceding 20181214. In scientific notation, it is written as 2.0181213 × 10^7. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 12419136 positive integers (up to 20181213) that are relatively prime to 20181213.

Interesting facts

20181213 has 8 divisors, whose sum is 24148600
The reverse of 20181213 is 31218102
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9

Name

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

Notation

Scientific notation	2.0181213 × 10^7
Engineering notation	2.0181213 × 10^6

Prime Factorization of 20181213

Prime Factorization 9 × 13 × 172489

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20181213	Product of the distinct prime numbers

The prime factorization of 20181213 is 9 × 13 × 172489. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 20, 81, 908, 566, 1069, 4791, 64920, 39912, 963003, 834873, 8153423, 4749244, 45193467, 77895676, 514031094, 552901813, 8312926450, 9462854845

Basic calculations (n = 20181213)

Multiplication

n×y

n×2	40362426
n×3	60543639
n×4	80724852
n×5	100906065

Division

n÷y

n÷2	10090606.5
n÷3	6727071
n÷3	5045303.25
n÷5	4036242.6

Exponentiation

n^y

n²	407281358151369
n³	8.2194318397821E+21
n⁴	1.6587810469762E+29
n⁵	3.347621362939E+36

Nth Root

^y√n

²√n	4492.3504983472
³√n	272.2591109681
⁴√n	67.024999055182
⁵√n	28.906096835082

Divisors of 20181213

1, 9, 13, 117, 172489, 1552401, 2242357, 20181213

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20181212	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181213 can be divided by 8 positive divisors. The sum of these divisors (counting 20181213) is 1, the average is 0.125.

Base conversion 20181213

Base	System	Value
2	Binary	1001100111111000011011101
3	Ternary	1101222022102100
4	Quaternary	1030333003131
5	Quinary	20131244323
6	Senary	2000315313
8	Octal	114770335
10	Decimal	20181213
12	Duodecimal	6912b39
16	Hexadecimal	133f0dd
20	Vigesimal	662d0d
36	Base36	c0jx9

Cryptographic Hash Functions

md5	4456e2fa0d1445ae7a2ac320a57e8468
sha1	52d8ef05c5904a06b21c5dd2c45e74db6bd582a7
sha256	2ac45be341264700640c2bf8b3fdcfba817e3f907930387f2ed854f1087c3c34
sha512	3a3eeb111fc25e3a988558da6ea3021e8d52a745a2c964bfd5dffaa424bf29693f08a08102cab3c0432b8b496d5b4a65e09bce8a8a05a2273aaeb210936fe046
ripemd-160	28aa2b824a709216d101bdf22648910f4d87253e

20181213 as geometric shapes

Circle

Radius = n

Diameter	40362426
Circumference	126802301.00266
Area	1.2795121227124E+15

Sphere

Radius = n

Volume	3.4429475579388E+22
Surface area	5.1180484908497E+15
Circumference	126802301.00266

Square

Length = n

Perimeter	80724852
Area	407281358151369
Diagonal	28540545.12974

Cube

Length = n

Surface area	2443688148908214
Volume	8.2194318397821E+21
Space diagonal	34954886.27437

Equilateral Triangle

Length = n

Perimeter	60543639
Area	1.7635800132346E+14
Altitude	17477443.137185

Triangular Pyramid

Length = n

Surface area	1.7635800132346E+14
Volume	9.6866933190175E+20
Height	9513515.0432467