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

20181688 (number)

20181688 is an even 8-digits composite number following 20181687 and preceding 20181689. In scientific notation, it is written as 2.0181688 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 16 positive divisors. There are 10017696 positive integers (up to 20181688) that are relatively prime to 20181688.

Interesting facts

20181688 has 16 divisors, whose sum is 38115000
The reverse of 20181688 is 88618102
Previous prime number is 139

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty million one hundred eighty-one thousand six hundred eighty-eight

Notation

Scientific notation	2.0181688 × 10^7
Engineering notation	2.0181688 × 10^6

Prime Factorization of 20181688

Prime Factorization 2 × 2 × 2 × 139 × 18149

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	5045422	Product of the distinct prime numbers

The prime factorization of 20181688 is 2 × 2 × 2 × 139 × 18149. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 96, 70, 529, 973, 5297, 1316, 60249, 76815, 754218, 654944, 7101948, 250840, 99401710, 43744594, 47535222, 773738503, 284267851, 8760869062

Basic calculations (n = 20181688)

Multiplication

n×y

n×2	40363376
n×3	60545064
n×4	80726752
n×5	100908440

Division

n÷y

n÷2	10090844
n÷3	6727229.3333333
n÷3	5045422
n÷5	4036337.6

Exponentiation

n^y

n²	407300530529344
n³	8.2200122293777E+21
n⁴	1.6589372216949E+29
n⁵	3.3480153419832E+36

Nth Root

^y√n

²√n	4492.403365683
³√n	272.26124698215
⁴√n	67.025393439226
⁵√n	28.906232904869

Divisors of 20181688

1, 2, 4, 8, 139, 278, 556, 1112, 18149, 36298, 72596, 145192, 2522711, 5045422, 10090844, 20181688

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	-20181687	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 20181688 can be divided by 16 positive divisors. The sum of these divisors (counting 20181688) is 1, the average is 0.0625.

Base conversion 20181688

Base	System	Value
2	Binary	1001100111111001010111000
3	Ternary	1101222100001221
4	Quaternary	1030333022320
5	Quinary	20131303223
6	Senary	2000321424
8	Octal	114771270
10	Decimal	20181688
12	Duodecimal	6913274
16	Hexadecimal	133f2b8
20	Vigesimal	662e48
36	Base36	c0kag

Cryptographic Hash Functions

md5	8c30fcb3ae48eee86a96b24626a0cbf7
sha1	5255264cb1b4eb310a386c36e41e786de71afed9
sha256	56bddc799ce24dab6ad7a95f709dae67e72bbaa2260fc70be23ada44d02a017e
sha512	1a9c7793f4384e9fcf9bf8e5791abfcbf09dce00a08e93b6c03bcbd34d593adf6b00c6c96618cd48ea7806d56a7379ecc667cf495d5aa7e6779d909c0687176f
ripemd-160	093fa29f16a895c938e3317a1c1e88950ca44846

20181688 as geometric shapes

Circle

Radius = n

Diameter	40363376
Circumference	126805285.51568
Area	1.2795723545142E+15

Sphere

Radius = n

Volume	3.4431906709642E+22
Surface area	5.1182894180568E+15
Circumference	126805285.51568

Square

Length = n

Perimeter	80726752
Area	407300530529344
Diagonal	28541216.881182

Cube

Length = n

Surface area	2443803183176064
Volume	8.2200122293777E+21
Space diagonal	34955708.998503

Equilateral Triangle

Length = n

Perimeter	60545064
Area	1.7636630320665E+14
Altitude	17477854.499252

Triangular Pyramid

Length = n

Surface area	1.7636630320665E+14
Volume	9.6873773147155E+20
Height	9513738.9603941