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

20001987 (number)

20001987 is an odd 8-digits composite number following 20001986 and preceding 20001988. In scientific notation, it is written as 2.0001987 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors. There are 13334652 positive integers (up to 20001987) that are relatively prime to 20001987.

Interesting facts

20001987 has 6 divisors, whose sum is 28891772
The reverse of 20001987 is 78910002
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty million one thousand nine hundred eighty-seven

Notation

Scientific notation	2.0001987 × 10^7
Engineering notation	2.0001987 × 10^6

Prime Factorization of 20001987

Prime Factorization 3 × 3 × 2222443

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	6667329	Product of the distinct prime numbers

The prime factorization of 20001987 is 3 × 3 × 2222443. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 8, 45, 76, 343, 851, 5026, 1225, 13556, 75483, 62624, 341710, 9936015, 6760834, 53312267, 62059946, 601032559, 283356613, 6443861361, 4500932109

Basic calculations (n = 20001987)

Multiplication

n×y

n×2	40003974
n×3	60005961
n×4	80007948
n×5	100009935

Division

n÷y

n÷2	10000993.5
n÷3	6667329
n÷3	5000496.75
n÷5	4000397.4

Exponentiation

n^y

n²	400079483948169
n³	8.002384636898E+21
n⁴	1.6006359347623E+29
n⁵	3.2015899158849E+36

Nth Root

^y√n

²√n	4472.3581028357
³√n	271.45075060815
⁴√n	66.875691419496
⁵√n	28.854571424304

Divisors of 20001987

1, 3, 9, 2222443, 6667329, 20001987

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20001986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20001987 can be divided by 6 positive divisors. The sum of these divisors (counting 20001987) is 1, the average is 0.16666666666667.

Base conversion 20001987

Base	System	Value
2	Binary	1001100010011010011000011
3	Ternary	1101122012120100
4	Quaternary	1030103103003
5	Quinary	20110030422
6	Senary	1552413443
8	Octal	114232303
10	Decimal	20001987
12	Duodecimal	6847283
16	Hexadecimal	13134c3
20	Vigesimal	6504j7
36	Base36	bwpmr

Cryptographic Hash Functions

md5	1c9727336d864c0c93f28112100bf6a7
sha1	9c9ff2d44ccb77d8e919cbdc1a1401714d8bf07d
sha256	2d1de31bd90bc361d9bee7462c5e4d769bf48abbe522ef213927f5b9f7a4cb5e
sha512	1e44452d186a4a57f07fbde5d23b26cc4241963bdc279cf95413f1642af804cf9da6899d38d85bfbc89a2af08b3abff39ababf513fffb9773efe4af67e25cc63
ripemd-160	40e78861fd3a20bfc3abf7ff02eafe742c48cb3b

20001987 as geometric shapes

Circle

Radius = n

Diameter	40003974
Circumference	125676190.8328
Area	1.2568867676236E+15

Sphere

Radius = n

Volume	3.3520310381971E+22
Surface area	5.0275470704943E+15
Circumference	125676190.8328

Square

Length = n

Perimeter	80007948
Area	400079483948169
Diagonal	28287081.28981

Cube

Length = n

Surface area	2400476903689014
Volume	8.002384636898E+21
Space diagonal	34644457.736332

Equilateral Triangle

Length = n

Perimeter	60005961
Area	1.7323949831604E+14
Altitude	17322228.868166

Triangular Pyramid

Length = n

Surface area	1.7323949831604E+14
Volume	9.430900737356E+20
Height	9429027.0966034