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

21243487 (number)

21243487 is an odd 8-digits composite number following 21243486 and preceding 21243488. In scientific notation, it is written as 2.1243487 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 21228256 positive integers (up to 21243487) that are relatively prime to 21243487.

Interesting facts

21243487 has 4 divisors, whose sum is 21258720
The reverse of 21243487 is 78434212
Previous prime number is 1553

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-one million two hundred forty-three thousand four hundred eighty-seven

Notation

Scientific notation	2.1243487 × 10^7
Engineering notation	2.1243487 × 10^6

Prime Factorization of 21243487

Prime Factorization 1553 × 13679

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21243487	Product of the distinct prime numbers

The prime factorization of 21243487 is 1553 × 13679. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 4, 43, 99, 79, 815, 7967, 4444, 41720, 3620, 260218, 796806, 850659, 7198459, 89625627, 70859362, 128000446, 391117039, 2056126852, 9461956478

Basic calculations (n = 21243487)

Multiplication

n×y

n×2	42486974
n×3	63730461
n×4	84973948
n×5	106217435

Division

n÷y

n÷2	10621743.5
n÷3	7081162.3333333
n÷3	5310871.75
n÷5	4248697.4

Exponentiation

n^y

n²	451285739919169
n³	9.5868827492582E+21
n⁴	2.0365881905439E+29
n⁵	4.3264234750173E+36

Nth Root

^y√n

²√n	4609.0657404728
³√n	276.95461206836
⁴√n	67.890100460029
⁵√n	29.204189717212

Divisors of 21243487

1, 1553, 13679, 21243487

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	-21243486	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 21243487 can be divided by 4 positive divisors. The sum of these divisors (counting 21243487) is 1, the average is 0.25.

Base conversion 21243487

Base	System	Value
2	Binary	1010001000010011001011111
3	Ternary	1110222021120211
4	Quaternary	1101002121133
5	Quinary	20414242422
6	Senary	2035153251
8	Octal	121023137
10	Decimal	21243487
12	Duodecimal	7145827
16	Hexadecimal	144265f
20	Vigesimal	6cf8e7
36	Base36	cnbkv

Cryptographic Hash Functions

md5	676aa0d7ba7a86b7ba00936ee68a369e
sha1	79c9790465b5c7993b114d918191961848245742
sha256	7cd63d838ce6cea668fe88df45b1215977717cbca4f897cea7361a3267206f3e
sha512	bff0da8cc9ef94029517b480b7ab1b41ff94e5396518601719edd5e664b67f686f1d8935cb026511c52dc1f441837b0be5442da6fd843c9a0ca61b99c548814c
ripemd-160	a4d74d8ec683eb489788e0a040d4765ca6540b10

21243487 as geometric shapes

Circle

Radius = n

Diameter	42486974
Circumference	133476765.39166
Area	1.4177559651999E+15

Sphere

Radius = n

Volume	4.0157440554529E+22
Surface area	5.6710238607996E+15
Circumference	133476765.39166

Square

Length = n

Perimeter	84973948
Area	451285739919169
Diagonal	30042827.427497

Cube

Length = n

Surface area	2707714439515014
Volume	9.5868827492582E+21
Space diagonal	36794798.813929

Equilateral Triangle

Length = n

Perimeter	63730461
Area	1.9541245756783E+14
Altitude	18397399.406964

Triangular Pyramid

Length = n

Surface area	1.9541245756783E+14
Volume	1.1298249670735E+21
Height	10014275.809166