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

21689987 (number)

21689987 is an odd 8-digits composite number following 21689986 and preceding 21689988. In scientific notation, it is written as 2.1689987 × 10^7. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 19081800 positive integers (up to 21689987) that are relatively prime to 21689987.

Interesting facts

21689987 has 8 divisors, whose sum is 24425472
The reverse of 21689987 is 78998612
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5

Name

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

Notation

Scientific notation	2.1689987 × 10^7
Engineering notation	2.1689987 × 10^6

Prime Factorization of 21689987

Prime Factorization 11 × 31 × 63607

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21689987	Product of the distinct prime numbers

The prime factorization of 21689987 is 11 × 31 × 63607. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 84, 33, 513, 512, 362, 5186, 24678, 39605, 988451, 759308, 3054434, 1895447, 29952663, 7984796, 961513329, 521617355, 3391457707, 1003698821

Basic calculations (n = 21689987)

Multiplication

n×y

n×2	43379974
n×3	65069961
n×4	86759948
n×5	108449935

Division

n÷y

n÷2	10844993.5
n÷3	7229995.6666667
n÷3	5422496.75
n÷5	4337997.4

Exponentiation

n^y

n²	470455536060169
n³	1.0204174461223E+22
n⁴	2.2132841140966E+29
n⁵	4.8006103662062E+36

Nth Root

^y√n

²√n	4657.2510132051
³√n	278.8815373891
⁴√n	68.244054782853
⁵√n	29.325934372438

Divisors of 21689987

1, 11, 31, 341, 63607, 699677, 1971817, 21689987

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21689986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21689987 can be divided by 8 positive divisors. The sum of these divisors (counting 21689987) is 1, the average is 0.125.

Base conversion 21689987

Base	System	Value
2	Binary	1010010101111011010000011
3	Ternary	1111210222001212
4	Quaternary	1102233122003
5	Quinary	21023034422
6	Senary	2052520335
8	Octal	122573203
10	Decimal	21689987
12	Duodecimal	73200ab
16	Hexadecimal	14af683
20	Vigesimal	6fb4j7
36	Base36	cww3n

Cryptographic Hash Functions

md5	03d535ba36045834a7318fe6ae6caff8
sha1	730b816f84db6081ad11a4d93e98b913fcf49d58
sha256	ca6eaef16773be05e95aec07b40a7e358607574811860a5f177d8ec8812e7275
sha512	066ceb90933f6de168d8ae8d5c4f0daa42bf75dc35b8e43506030c66caebfaf7403fcae6bca3eceb17877f6d0189168fd0d324564033adf274d647fc1d3fb072
ripemd-160	c1bb2ac92f5d92e555fc07f0f49cccb7a238de2f

21689987 as geometric shapes

Circle

Radius = n

Diameter	43379974
Circumference	136282207.63132
Area	1.4779796559273E+15

Sphere

Radius = n

Volume	4.2743146031103E+22
Surface area	5.9119186237091E+15
Circumference	136282207.63132

Square

Length = n

Perimeter	86759948
Area	470455536060169
Diagonal	30674273.783096

Cube

Length = n

Surface area	2822733216361014
Volume	1.0204174461223E+22
Space diagonal	37568159.499508

Equilateral Triangle

Length = n

Perimeter	65069961
Area	2.0371322278957E+14
Altitude	18784079.749754

Triangular Pyramid

Length = n

Surface area	2.0371322278957E+14
Volume	1.2025734929902E+21
Height	10224757.927699