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

20161209 (number)

20161209 is an odd 8-digits composite number following 20161208 and preceding 20161210. In scientific notation, it is written as 2.0161209 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 13440804 positive integers (up to 20161209) that are relatively prime to 20161209.

Interesting facts

20161209 has 4 divisors, whose sum is 26881616
The reverse of 20161209 is 90216102
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

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

Notation

Scientific notation	2.0161209 × 10^7
Engineering notation	2.0161209 × 10^6

Prime Factorization of 20161209

Prime Factorization 3 × 6720403

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20161209	Product of the distinct prime numbers

The prime factorization of 20161209 is 3 × 6720403. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 6, 99, 37, 582, 398, 7726, 1947, 33577, 38619, 979916, 93567, 2140949, 213249, 42172332, 71108564, 416553298, 731966577, 3676713045, 1439286373

Basic calculations (n = 20161209)

Multiplication

n×y

n×2	40322418
n×3	60483627
n×4	80644836
n×5	100806045

Division

n÷y

n÷2	10080604.5
n÷3	6720403
n÷3	5040302.25
n÷5	4032241.8

Exponentiation

n^y

n²	406474348341681
n³	8.1950142900554E+21
n⁴	1.6522139585979E+29
n⁵	3.331063093201E+36

Nth Root

^y√n

²√n	4490.1234949609
³√n	272.16912510304
⁴√n	67.008383766219
⁵√n	28.900364107703

Divisors of 20161209

1, 3, 6720403, 20161209

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	-20161208	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 20161209 can be divided by 4 positive divisors. The sum of these divisors (counting 20161209) is 1, the average is 0.25.

Base conversion 20161209

Base	System	Value
2	Binary	1001100111010001010111001
3	Ternary	1101221021222110
4	Quaternary	1030322022321
5	Quinary	20130124314
6	Senary	2000042533
8	Octal	114721271
10	Decimal	20161209
12	Duodecimal	6903449
16	Hexadecimal	133a2b9
20	Vigesimal	660309
36	Base36	c04hl

Cryptographic Hash Functions

md5	163c06a25eb419917fba9aed5b3d18f1
sha1	f77b4f684bec669d12d08d8fd85df23681415213
sha256	2fd6c7eab83732f7da7de04719e25e31ed775a469d0528067dfb05ef40e2d5a2
sha512	4f026fe6d2f4e8981e7130d1d716faf7fa2abb2771e284ec5009cc3e7a79a97227e950d96fb63bd953fbb0989b95fd5043df68f787eca99d1b977759b3720e55
ripemd-160	57bbdbee2f6fea90c063248740fa3a59e8f69deb

20161209 as geometric shapes

Circle

Radius = n

Diameter	40322418
Circumference	126676612.16378
Area	1.2769768266229E+15

Sphere

Radius = n

Volume	3.4327195586269E+22
Surface area	5.1079073064917E+15
Circumference	126676612.16378

Square

Length = n

Perimeter	80644836
Area	406474348341681
Diagonal	28512255.201639

Cube

Length = n

Surface area	2438846090050086
Volume	8.1950142900554E+21
Space diagonal	34920238.330015

Equilateral Triangle

Length = n

Perimeter	60483627
Area	1.7600855582531E+14
Altitude	17460119.165007

Triangular Pyramid

Length = n

Surface area	1.7600855582531E+14
Volume	9.6579169606981E+20
Height	9504085.0672128