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

21685989 (number)

21685989 is an odd 8-digits composite number following 21685988 and preceding 21685990. In scientific notation, it is written as 2.1685989 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 13345200 positive integers (up to 21685989) that are relatively prime to 21685989.

Interesting facts

21685989 has 8 divisors, whose sum is 31138912
The reverse of 21685989 is 98958612
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3

Name

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

Notation

Scientific notation	2.1685989 × 10^7
Engineering notation	2.1685989 × 10^6

Prime Factorization of 21685989

Prime Factorization 3 × 13 × 556051

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21685989	Product of the distinct prime numbers

The prime factorization of 21685989 is 3 × 13 × 556051. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 8, 33, 3, 155, 96, 4863, 3128, 70682, 1522, 179493, 438362, 9565405, 9559118, 48444596, 34997151, 78063069, 197193432, 4828476361, 7801230328

Basic calculations (n = 21685989)

Multiplication

n×y

n×2	43371978
n×3	65057967
n×4	86743956
n×5	108429945

Division

n÷y

n÷2	10842994.5
n÷3	7228663
n÷3	5421497.25
n÷5	4337197.8

Exponentiation

n^y

n²	470282118908121
n³	1.0198532857538E+22
n⁴	2.2116527136471E+29
n⁵	4.7961876419972E+36

Nth Root

^y√n

²√n	4656.8217702635
³√n	278.86440141911
⁴√n	68.2409097995
⁵√n	29.324853194003

Divisors of 21685989

1, 3, 13, 39, 556051, 1668153, 7228663, 21685989

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	-21685988	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 21685989 can be divided by 8 positive divisors. The sum of these divisors (counting 21685989) is 1, the average is 0.125.

Base conversion 21685989

Base	System	Value
2	Binary	1010010101110011011100101
3	Ternary	1111210202120210
4	Quaternary	1102232123211
5	Quinary	21022422424
6	Senary	2052450033
8	Octal	122563345
10	Decimal	21685989
12	Duodecimal	7319919
16	Hexadecimal	14ae6e5
20	Vigesimal	6faej9
36	Base36	cwt0l

Cryptographic Hash Functions

md5	8c33dd9d8bea6ec978666ff8a41e07ad
sha1	0d3cf75cf8d94d87dd5f0bd3ff58a9d542d7163b
sha256	50f177ea6f6c32bc57fb56404a6333dae18c773100bc2a0d232a47f7c0483f01
sha512	5931d5fd09f5a67bef2315034e6a4a7ce5f96d51f019fe4d435e976d0c5da13796638c260380036b7097a55e9cf1694911a4e7a7ee9b18d9818ffb9884b9a314
ripemd-160	7d9ab5e11ba19a0e90e29cd4233a63b1022269d9

21685989 as geometric shapes

Circle

Radius = n

Diameter	43371978
Circumference	136257087.45646
Area	1.4774348498764E+15

Sphere

Radius = n

Volume	4.2719514536848E+22
Surface area	5.9097393995056E+15
Circumference	136257087.45646

Square

Length = n

Perimeter	86743956
Area	470282118908121
Diagonal	30668619.757274

Cube

Length = n

Surface area	2821692713448726
Volume	1.0198532857538E+22
Space diagonal	37561234.76038

Equilateral Triangle

Length = n

Perimeter	65057967
Area	2.0363813096E+14
Altitude	18780617.38019

Triangular Pyramid

Length = n

Surface area	2.0363813096E+14
Volume	1.2019086236198E+21
Height	10222873.252425