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

21688081 (number)

21688081 is an odd 8-digits composite number following 21688080 and preceding 21688082. In scientific notation, it is written as 2.1688081 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 21390912 positive integers (up to 21688081) that are relatively prime to 21688081.

Interesting facts

21688081 has 4 divisors, whose sum is 21985252
The reverse of 21688081 is 18088612
Previous prime number is 73

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

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

Notation

Scientific notation	2.1688081 × 10^7
Engineering notation	2.1688081 × 10^6

Prime Factorization of 21688081

Prime Factorization 73 × 297097

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21688081	Product of the distinct prime numbers

The prime factorization of 21688081 is 73 × 297097. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 4, 83, 535, 367, 9169, 6933, 8918, 92510, 85126, 520847, 9009620, 2729692, 39874822, 68720837, 77707397, 849905995, 1795858246, 9468642335

Basic calculations (n = 21688081)

Multiplication

n×y

n×2	43376162
n×3	65064243
n×4	86752324
n×5	108440405

Division

n÷y

n÷2	10844040.5
n÷3	7229360.3333333
n÷3	5422020.25
n÷5	4337616.2

Exponentiation

n^y

n²	470372857462561
n³	1.0201484632849E+22
n⁴	2.2125062503749E+29
n⁵	4.7985014771138E+36

Nth Root

^y√n

²√n	4657.0463815599
³√n	278.87336827738
⁴√n	68.242555502852
⁵√n	29.325418953081

Divisors of 21688081

1, 73, 297097, 21688081

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	-21688080	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 21688081 can be divided by 4 positive divisors. The sum of these divisors (counting 21688081) is 1, the average is 0.25.

Base conversion 21688081

Base	System	Value
2	Binary	1010010101110111100010001
3	Ternary	1111210212110021
4	Quaternary	1102232330101
5	Quinary	21023004311
6	Senary	2052503441
8	Octal	122567421
10	Decimal	21688081
12	Duodecimal	731ab81
16	Hexadecimal	14aef11
20	Vigesimal	6fb041
36	Base36	cwump

Cryptographic Hash Functions

md5	64d8efdb489f876dfb1deb6e6b83f493
sha1	31047caa5ec5d256f7ed400fc7c078f3bd59e01f
sha256	6aeeaba3b160e451a024b818becc916462333048abc741338f8c335ae1659e1f
sha512	6419d036f1af2f30acbd90cb2c96dc45a26a8f3eee74729cac6ebcdfbbcc680b38f1e063a164aa575b9ce01220cd1a6587ed4f02966d9698a39b993fdcbcbc61
ripemd-160	f8f556132b1a45c1930edb0e5447904e8f7193eb

21688081 as geometric shapes

Circle

Radius = n

Diameter	43376162
Circumference	136270231.88012
Area	1.4777199134524E+15

Sphere

Radius = n

Volume	4.2731878904359E+22
Surface area	5.9108796538097E+15
Circumference	136270231.88012

Square

Length = n

Perimeter	86752324
Area	470372857462561
Diagonal	30671578.292046

Cube

Length = n

Surface area	2822237144775366
Volume	1.0201484632849E+22
Space diagonal	37564858.210669

Equilateral Triangle

Length = n

Perimeter	65064243
Area	2.0367742190663E+14
Altitude	18782429.105335

Triangular Pyramid

Length = n

Surface area	2.0367742190663E+14
Volume	1.2022564936764E+21
Height	10223859.430682