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

20187987 (number)

20187987 is an odd 8-digits composite number following 20187986 and preceding 20187988. In scientific notation, it is written as 2.0187987 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 13458656 positive integers (up to 20187987) that are relatively prime to 20187987.

Interesting facts

20187987 has 4 divisors, whose sum is 26917320
The reverse of 20187987 is 78978102
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty million one hundred eighty-seven thousand nine hundred eighty-seven

Notation

Scientific notation	2.0187987 × 10^7
Engineering notation	2.0187987 × 10^6

Prime Factorization of 20187987

Prime Factorization 3 × 6729329

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20187987	Product of the distinct prime numbers

The prime factorization of 20187987 is 3 × 6729329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 19, 19, 629, 306, 7816, 2809, 67334, 67482, 565621, 87564, 7712181, 5339487, 43314256, 45578714, 925968277, 557628537, 1178388492, 4844443551

Basic calculations (n = 20187987)

Multiplication

n×y

n×2	40375974
n×3	60563961
n×4	80751948
n×5	100939935

Division

n÷y

n÷2	10093993.5
n÷3	6729329
n÷3	5046996.75
n÷5	4037597.4

Exponentiation

n^y

n²	407554819112169
n³	8.2277113900238E+21
n⁴	1.6610093058155E+29
n⁵	3.3532434272683E+36

Nth Root

^y√n

²√n	4493.1043833857
³√n	272.28956960813
⁴√n	67.030622728614
⁵√n	28.908037091251

Divisors of 20187987

1, 3, 6729329, 20187987

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	-20187986	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 20187987 can be divided by 4 positive divisors. The sum of these divisors (counting 20187987) is 1, the average is 0.25.

Base conversion 20187987

Base	System	Value
2	Binary	1001101000000101101010011
3	Ternary	1101222122201020
4	Quaternary	1031000231103
5	Quinary	20132003422
6	Senary	2000410523
8	Octal	115005523
10	Decimal	20187987
12	Duodecimal	6916a43
16	Hexadecimal	1340b53
20	Vigesimal	6639j7
36	Base36	c0p5f

Cryptographic Hash Functions

md5	d909a405fbc66c6810713d15c795b533
sha1	0134274c4018e8e24281da79bc66e1b183901833
sha256	accf650f00127bd03326525aea5d678df919fec1c3c6da7f82a2b0b0bd95b900
sha512	f35443c62b8e27cfa267436d01d235faa23b215cd9f695d0ac7da9b450069c85ff271be42f0592b7502ad05de996071b4bfd590278856f55d8a8d11ce107a7ce
ripemd-160	b6b13af0378baef1f373e4755cb5a02c1f055a06

20187987 as geometric shapes

Circle

Radius = n

Diameter	40375974
Circumference	126844863.29993
Area	1.2803712256579E+15

Sphere

Radius = n

Volume	3.4464156878341E+22
Surface area	5.1214849026316E+15
Circumference	126844863.29993

Square

Length = n

Perimeter	80751948
Area	407554819112169
Diagonal	28550125.012412

Cube

Length = n

Surface area	2445328914673014
Volume	8.2277113900238E+21
Space diagonal	34966619.18654

Equilateral Triangle

Length = n

Perimeter	60563961
Area	1.7647641339296E+14
Altitude	17483309.59327

Triangular Pyramid

Length = n

Surface area	1.7647641339296E+14
Volume	9.6964508625527E+20
Height	9516708.3374706