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

21689991 (number)

21689991 is an odd 8-digits composite number following 21689990 and preceding 21689992. In scientific notation, it is written as 2.1689991 × 10^7. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 14459976 positive integers (up to 21689991) that are relatively prime to 21689991.

Interesting facts

21689991 has 4 divisors, whose sum is 22493352
The reverse of 21689991 is 19998612
Previous prime number is 27

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

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

Notation

Scientific notation	2.1689991 × 10^7
Engineering notation	2.1689991 × 10^6

Prime Factorization of 21689991

Prime Factorization 27 × 803333

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21689991	Product of the distinct prime numbers

The prime factorization of 21689991 is 27 × 803333. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 74, 85, 699, 200, 3643, 90, 4772, 44000, 502863, 668659, 4422037, 665365, 23325182, 52743584, 485572894, 928136947, 5705220603, 5962362485

Basic calculations (n = 21689991)

Multiplication

n×y

n×2	43379982
n×3	65069973
n×4	86759964
n×5	108449955

Division

n÷y

n÷2	10844995.5
n÷3	7229997
n÷3	5422497.75
n÷5	4337998.2

Exponentiation

n^y

n²	470455709580081
n³	1.0204180106691E+22
n⁴	2.213285746765E+29
n⁵	4.8006147927761E+36

Nth Root

^y√n

²√n	4657.251442643
³√n	278.88155453259
⁴√n	68.244057929192
⁵√n	29.325935454077

Divisors of 21689991

1, 27, 803333, 21689991

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	-21689990	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 21689991 can be divided by 4 positive divisors. The sum of these divisors (counting 21689991) is 1, the average is 0.25.

Base conversion 21689991

Base	System	Value
2	Binary	1010010101111011010000111
3	Ternary	1111210222002000
4	Quaternary	1102233122013
5	Quinary	21023034431
6	Senary	2052520343
8	Octal	122573207
10	Decimal	21689991
12	Duodecimal	73200b3
16	Hexadecimal	14af687
20	Vigesimal	6fb4jb
36	Base36	cww3r

Cryptographic Hash Functions

md5	482af4deeaf9420f8ca32c678f8e524e
sha1	117802fec96bacbfe6bf0b586d8ed84f343d0d08
sha256	00a44438a737ae224287b0e651b4ff46975a1fc6b2c327c89d6749bebf95de8a
sha512	2f62e32d5028de458b04451c48a39292091d340b9e78380c5d5e3dbea86ebbd6f9181f622e763eac59b50abbc5bbb74045bfc82c26d43c51efab153de438432a
ripemd-160	ab2804cf766270099d67ad270b042a9d8339ef17

21689991 as geometric shapes

Circle

Radius = n

Diameter	43379982
Circumference	136282232.76406
Area	1.4779802010562E+15

Sphere

Radius = n

Volume	4.2743169678782E+22
Surface area	5.9119208042246E+15
Circumference	136282232.76406

Square

Length = n

Perimeter	86759964
Area	470455709580081
Diagonal	30674279.43995

Cube

Length = n

Surface area	2822734257480486
Volume	1.0204180106691E+22
Space diagonal	37568166.427712

Equilateral Triangle

Length = n

Perimeter	65069973
Area	2.0371329792589E+14
Altitude	18784083.213856

Triangular Pyramid

Length = n

Surface area	2.0371329792589E+14
Volume	1.202574158315E+21
Height	10224759.813317