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

21685621 (number)

21685621 is an odd 8-digits prime number following 21685620 and preceding 21685622. In scientific notation, it is written as 2.1685621 × 10^7. The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors. There are 21685620 positive integers (up to 21685621) that are relatively prime to 21685621.

Interesting facts

21685621 has 2 divisors, whose sum is 21685622
The reverse of 21685621 is 12658612
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.1685621 × 10^7
Engineering notation	2.1685621 × 10^6

Prime Factorization of 21685621

Prime Factorization 21685621

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21685621	Product of the distinct prime numbers

The prime factorization of 21685621 is 21685621. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 3, 48, 92, 482, 841, 4217, 6763, 26855, 73229, 115393, 317122, 4252264, 4646055, 95454998, 86107633, 256933125, 5536073, 6199562373, 9179127058

Basic calculations (n = 21685621)

Multiplication

n×y

n×2	43371242
n×3	65056863
n×4	86742484
n×5	108428105

Division

n÷y

n÷2	10842810.5
n÷3	7228540.3333333
n÷3	5421405.25
n÷5	4337124.2

Exponentiation

n^y

n²	470266158155641
n³	1.0198013674889E+22
n⁴	2.2115025950647E+29
n⁵	4.7957807117089E+36

Nth Root

^y√n

²√n	4656.7822581693
³√n	278.86282401537
⁴√n	68.240620294435
⁵√n	29.324753667813

Divisors of 21685621

1, 21685621

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21685622	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10842811	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4656.7823655395	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.999999907773	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21685621 can be divided by 2 positive divisors. The sum of these divisors (counting 21685621) is 21685622, the average is 10842811.

Base conversion 21685621

Base	System	Value
2	Binary	1010010101110010101110101
3	Ternary	1111210202002011
4	Quaternary	1102232111311
5	Quinary	21022414441
6	Senary	2052444221
8	Octal	122562565
10	Decimal	21685621
12	Duodecimal	7319671
16	Hexadecimal	14ae575
20	Vigesimal	6fae11
36	Base36	cwsqd

Cryptographic Hash Functions

md5	d64458992f06c813558d1a46f4e8a914
sha1	183da14f63a7b51f992445f8b5fd15c73ab4a2f7
sha256	ffa10c74a759a20f65b92aeb42bd70a8c06436ace343d81c16ac99745c8e9f50
sha512	70d40360b3e6aa353c2a6d3006c2eeb1b3134bf5469916a8c5000c134774d9b9a5cf820e1ba3d43a0c20bc10d823b0bed8d5e592ad6c60630535ec9a4d3cb47b
ripemd-160	00aaedd3ee2abb21200bc1362142be11441099d3

21685621 as geometric shapes

Circle

Radius = n

Diameter	43371242
Circumference	136254775.24427
Area	1.4773847076937E+15

Sphere

Radius = n

Volume	4.2717339789654E+22
Surface area	5.9095388307746E+15
Circumference	136254775.24427

Square

Length = n

Perimeter	86742484
Area	470266158155641
Diagonal	30668099.326683

Cube

Length = n

Surface area	2821596948933846
Volume	1.0198013674889E+22
Space diagonal	37560597.365683

Equilateral Triangle

Length = n

Perimeter	65056863
Area	2.0363121975145E+14
Altitude	18780298.682841

Triangular Pyramid

Length = n

Surface area	2.0363121975145E+14
Volume	1.2018474373579E+21
Height	10222699.775561