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

20111987 (number)

20111987 is an odd 8-digits composite number following 20111986 and preceding 20111988. In scientific notation, it is written as 2.0111987 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 17238840 positive integers (up to 20111987) that are relatively prime to 20111987.

Interesting facts

20111987 has 4 divisors, whose sum is 22985136
The reverse of 20111987 is 78911102
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	2.0111987 × 10^7
Engineering notation	2.0111987 × 10^6

Prime Factorization of 20111987

Prime Factorization 7 × 2873141

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20111987	Product of the distinct prime numbers

The prime factorization of 20111987 is 7 × 2873141. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 17, 77, 333, 473, 9817, 6567, 33716, 5579, 642815, 930462, 8065945, 2564009, 77032612, 23651378, 633623265, 58448016, 661966985, 9241705584

Basic calculations (n = 20111987)

Multiplication

n×y

n×2	40223974
n×3	60335961
n×4	80447948
n×5	100559935

Division

n÷y

n÷2	10055993.5
n÷3	6703995.6666667
n÷3	5027996.75
n÷5	4022397.4

Exponentiation

n^y

n²	404492021088169
n³	8.135138269729E+21
n⁴	1.6361379512399E+29
n⁵	3.2905985205544E+36

Nth Root

^y√n

²√n	4484.6390044239
³√n	271.94745146196
⁴√n	66.967447348872
⁵√n	28.886238715103

Divisors of 20111987

1, 7, 2873141, 20111987

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	-20111986	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 20111987 can be divided by 4 positive divisors. The sum of these divisors (counting 20111987) is 1, the average is 0.25.

Base conversion 20111987

Base	System	Value
2	Binary	1001100101110001001110011
3	Ternary	1101211210110102
4	Quaternary	1030232021303
5	Quinary	20122040422
6	Senary	1555023015
8	Octal	114561163
10	Decimal	20111987
12	Duodecimal	689aa6b
16	Hexadecimal	132e273
20	Vigesimal	65djj7
36	Base36	bz2ib

Cryptographic Hash Functions

md5	8491ff0da9d3cfc8e4bb7a59365b3f80
sha1	7248170a58ce6c26aa3c171cafc45ec94cd68b38
sha256	f4e367db4246bce8dd055465ccc78039bff352790664ebd6cf4087766cce322d
sha512	a81e7fe3478f69d27f2784f6c6a73806a1ccd57c8aece53b1a18df60c2604441f05f603405e5a5fd78d830a9e2635c0531043112356e3b541d7b8b20aeef8b9c
ripemd-160	39eafb09cfa45141cb8898a7ce480a3b2676f6d4

20111987 as geometric shapes

Circle

Radius = n

Diameter	40223974
Circumference	126367341.21659
Area	1.2707491618863E+15

Sphere

Radius = n

Volume	3.4076387498824E+22
Surface area	5.0829966475451E+15
Circumference	126367341.21659

Square

Length = n

Perimeter	80447948
Area	404492021088169
Diagonal	28442644.781671

Cube

Length = n

Surface area	2426952126529014
Volume	8.135138269729E+21
Space diagonal	34834983.325165

Equilateral Triangle

Length = n

Perimeter	60335961
Area	1.7515018294523E+14
Altitude	17417491.662582

Triangular Pyramid

Length = n

Surface area	1.7515018294523E+14
Volume	9.5873523940259E+20
Height	9480881.5938905