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

21689985 (number)

21689985 is an odd 8-digits composite number following 21689984 and preceding 21689986. In scientific notation, it is written as 2.1689985 × 10^7. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 11349312 positive integers (up to 21689985) that are relatively prime to 21689985.

Interesting facts

21689985 has 4 divisors, whose sum is 21718064
The reverse of 21689985 is 58998612
Previous prime number is 795

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-nine thousand nine hundred eighty-five

Notation

Scientific notation	2.1689985 × 10^7
Engineering notation	2.1689985 × 10^6

Prime Factorization of 21689985

Prime Factorization 795 × 27283

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21689985	Product of the distinct prime numbers

The prime factorization of 21689985 is 795 × 27283. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 1, 78, 83, 310, 105, 7605, 9644, 30629, 76269, 451400, 125673, 385725, 9248560, 43975396, 49941163, 214909945, 167070968, 1498639670, 7217226797

Basic calculations (n = 21689985)

Multiplication

n×y

n×2	43379970
n×3	65069955
n×4	86759940
n×5	108449925

Division

n÷y

n÷2	10844992.5
n÷3	7229995
n÷3	5422496.25
n÷5	4337997

Exponentiation

n^y

n²	470455449300225
n³	1.020417163849E+22
n⁴	2.2132832977628E+29
n⁵	4.8006081529225E+36

Nth Root

^y√n

²√n	4657.2507984862
³√n	278.88152881736
⁴√n	68.244053209684
⁵√n	29.325933831618

Divisors of 21689985

1, 795, 27283, 21689985

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	-21689984	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 21689985 can be divided by 4 positive divisors. The sum of these divisors (counting 21689985) is 1, the average is 0.25.

Base conversion 21689985

Base	System	Value
2	Binary	1010010101111011010000001
3	Ternary	1111210222001210
4	Quaternary	1102233122001
5	Quinary	21023034420
6	Senary	2052520333
8	Octal	122573201
10	Decimal	21689985
12	Duodecimal	73200a9
16	Hexadecimal	14af681
20	Vigesimal	6fb4j5
36	Base36	cww3l

Cryptographic Hash Functions

md5	6984b3476e714841b6c57ea3840fa5c7
sha1	84fce18b8863cd42e03c5879de6a63c0ac002718
sha256	26eef6432e87db6bcf192295d09c46596ccb57072468cc31902477356da4c11c
sha512	85b32b5daca92475b6fcaf31df9af519748f4ce583a7bcc9c51df6f03d7d7ae6a8100a12db9ba789cae652d191223f14352feae1e5a6f2a982cba93d6f88842d
ripemd-160	75e06dcb3eef1242708b3a8701eb545620b17a47

21689985 as geometric shapes

Circle

Radius = n

Diameter	43379970
Circumference	136282195.06495
Area	1.4779793833629E+15

Sphere

Radius = n

Volume	4.2743134207267E+22
Surface area	5.9119175334515E+15
Circumference	136282195.06495

Square

Length = n

Perimeter	86759940
Area	470455449300225
Diagonal	30674270.954669

Cube

Length = n

Surface area	2822732695801350
Volume	1.020417163849E+22
Space diagonal	37568156.035407

Equilateral Triangle

Length = n

Perimeter	65069955
Area	2.0371318522141E+14
Altitude	18784078.017703

Triangular Pyramid

Length = n

Surface area	2.0371318522141E+14
Volume	1.202573160328E+21
Height	10224756.98489