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

21681878 (number)

21681878 is an even 8-digits composite number following 21681877 and preceding 21681879. In scientific notation, it is written as 2.1681878 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 10840938 positive integers (up to 21681878) that are relatively prime to 21681878.

Interesting facts

21681878 has 4 divisors, whose sum is 32522820
The reverse of 21681878 is 87818612
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5

Name

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

Notation

Scientific notation	2.1681878 × 10^7
Engineering notation	2.1681878 × 10^6

Prime Factorization of 21681878

Prime Factorization 2 × 10840939

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21681878	Product of the distinct prime numbers

The prime factorization of 21681878 is 2 × 10840939. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 9, 34, 3, 103, 452, 3888, 5570, 97141, 50353, 186568, 739823, 2985055, 9309496, 20284299, 49851863, 236765666, 65490627, 852583709, 4398681652

Basic calculations (n = 21681878)

Multiplication

n×y

n×2	43363756
n×3	65045634
n×4	86727512
n×5	108409390

Division

n÷y

n÷2	10840939
n÷3	7227292.6666667
n÷3	5420469.5
n÷5	4336375.6

Exponentiation

n^y

n²	470103833606884
n³	1.0192733967597E+22
n⁴	2.2099761437189E+29
n⁵	4.7916433131023E+36

Nth Root

^y√n

²√n	4656.38035388
³√n	278.84677891942
⁴√n	68.237675472425
⁵√n	29.3237412907

Divisors of 21681878

1, 2, 10840939, 21681878

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	-21681877	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 21681878 can be divided by 4 positive divisors. The sum of these divisors (counting 21681878) is 1, the average is 0.25.

Base conversion 21681878

Base	System	Value
2	Binary	1010010101101011011010110
3	Ternary	1111210112221112
4	Quaternary	1102231123112
5	Quinary	21022310003
6	Senary	2052415022
8	Octal	122553326
10	Decimal	21681878
12	Duodecimal	7317472
16	Hexadecimal	14ad6d6
20	Vigesimal	6fa4di
36	Base36	cwpue

Cryptographic Hash Functions

md5	3a3089d6948295e0e1bb817ba51fa536
sha1	e2b950c1ed20b30b79cda1d4eb5a327eb8485a74
sha256	1851166b27d1fec96ef9d48ed1681a682252ced69e0946fd6d3e04b84ae16cd5
sha512	ffb95826a202e65add4b0f37b970aef621cbd092a6c2b55b2a9cd85eba0697a15feaebd7aa900b19efa691ca781a5067482190b87c4a82cd1187680a920a5a60
ripemd-160	81335f7cce3b99d9e595a627191644f35d9048ec

21681878 as geometric shapes

Circle

Radius = n

Diameter	43363756
Circumference	136231257.28166
Area	1.4768747500838E+15

Sphere

Radius = n

Volume	4.2695224203463E+22
Surface area	5.9074990003351E+15
Circumference	136231257.28166

Square

Length = n

Perimeter	86727512
Area	470103833606884
Diagonal	30662805.925319

Cube

Length = n

Surface area	2820623001641304
Volume	1.0192733967597E+22
Space diagonal	37554114.29951

Equilateral Triangle

Length = n

Perimeter	65045634
Area	2.0356093116001E+14
Altitude	18777057.149755

Triangular Pyramid

Length = n

Surface area	2.0356093116001E+14
Volume	1.2012252178864E+21
Height	10220935.30844