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

21082987 (number)

21082987 is an odd 8-digits composite number following 21082986 and preceding 21082988. In scientific notation, it is written as 2.1082987 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 21004920 positive integers (up to 21082987) that are relatively prime to 21082987.

Interesting facts

21082987 has 4 divisors, whose sum is 21161056
The reverse of 21082987 is 78928012
Previous prime number is 271

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	2.1082987 × 10^7
Engineering notation	2.1082987 × 10^6

Prime Factorization of 21082987

Prime Factorization 271 × 77797

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21082987	Product of the distinct prime numbers

The prime factorization of 21082987 is 271 × 77797. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 2, 13, 57, 208, 402, 1879, 7943, 96639, 80185, 856481, 58814, 2973482, 2753133, 8914041, 88488089, 609891360, 709285610, 4252777928, 6105614154

Basic calculations (n = 21082987)

Multiplication

n×y

n×2	42165974
n×3	63248961
n×4	84331948
n×5	105414935

Division

n÷y

n÷2	10541493.5
n÷3	7027662.3333333
n÷3	5270746.75
n÷5	4216597.4

Exponentiation

n^y

n²	444492340842169
n³	9.371226243575E+21
n⁴	1.9757344106735E+29
n⁵	4.1654382895682E+36

Nth Root

^y√n

²√n	4591.6213911863
³√n	276.25536035134
⁴√n	67.76150375535
⁵√n	29.159926716283

Divisors of 21082987

1, 271, 77797, 21082987

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	-21082986	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 21082987 can be divided by 4 positive divisors. The sum of these divisors (counting 21082987) is 1, the average is 0.25.

Base conversion 21082987

Base	System	Value
2	Binary	1010000011011001101101011
3	Ternary	1110200010102101
4	Quaternary	1100123031223
5	Quinary	20344123422
6	Senary	2031514231
8	Octal	120331553
10	Decimal	21082987
12	Duodecimal	7088977
16	Hexadecimal	141b36b
20	Vigesimal	6bf797
36	Base36	cjvqj

Cryptographic Hash Functions

md5	2112d623ade61dec6f5eafaa3b13ec9e
sha1	088744ba8f9b13c63a813e3c3dd5a1ab6f2968cf
sha256	d21de31d1e77a793e5da279c4ebe39504d5439ebe339ba5314579d73651b9e91
sha512	a1093bea28a7e0a898afb96243c0e33c7037a3b2a4394c2ff68ea7ba88917dcd4d0592052316dcdf37bb4f08aa2412e7ebed1e3a778b98d5eae34123a1bb00d9
ripemd-160	3677900541458211b8985d2e9a54e5b71dd99dd9

21082987 as geometric shapes

Circle

Radius = n

Diameter	42165974
Circumference	132468314.14986
Area	1.3964138725667E+15

Sphere

Radius = n

Volume	3.9254100695924E+22
Surface area	5.5856554902668E+15
Circumference	132468314.14986

Square

Length = n

Perimeter	84331948
Area	444492340842169
Diagonal	29815846.150736

Cube

Length = n

Surface area	2666954045053014
Volume	9.371226243575E+21
Space diagonal	36516804.659314

Equilateral Triangle

Length = n

Perimeter	63248961
Area	1.9247082947846E+14
Altitude	18258402.329657

Triangular Pyramid

Length = n

Surface area	1.9247082947846E+14
Volume	1.1044096041442E+21
Height	9938615.3835786