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

21681844 (number)

21681844 is an even 8-digits composite number following 21681843 and preceding 21681845. In scientific notation, it is written as 2.1681844 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 18 positive divisors. There are 10693296 positive integers (up to 21681844) that are relatively prime to 21681844.

Interesting facts

21681844 has 18 divisors, whose sum is 38463810
The reverse of 21681844 is 44818612
Previous prime number is 223

Basic properties

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

Name

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

Notation

Scientific notation	2.1681844 × 10^7
Engineering notation	2.1681844 × 10^6

Prime Factorization of 21681844

Prime Factorization 2 × 2 × 109 × 223 × 223

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	48614	Product of the distinct prime numbers

The prime factorization of 21681844 is 2 × 2 × 109 × 223 × 223. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 5, 38, 64, 722, 649, 8669, 1922, 71212, 380, 510201, 887198, 5992051, 2283420, 78072354, 1771229, 289416573, 713397360, 2246387721, 3490831324

Basic calculations (n = 21681844)

Multiplication

n×y

n×2	43363688
n×3	65045532
n×4	86727376
n×5	108409220

Division

n÷y

n÷2	10840922
n÷3	7227281.3333333
n÷3	5420461
n÷5	4336368.8

Exponentiation

n^y

n²	470102359240336
n³	1.0192686017081E+22
n⁴	2.2099622816333E+29
n⁵	4.7916057436257E+36

Nth Root

^y√n

²√n	4656.3767029741
³√n	278.84663316336
⁴√n	68.237648721026
⁵√n	29.323732094008

Divisors of 21681844

1, 2, 4, 109, 218, 223, 436, 446, 892, 24307, 48614, 49729, 97228, 99458, 198916, 5420461, 10840922, 21681844

18 divisors

τ	Total Divisors	18	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21681843	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.055555555555556	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	18	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21681844 can be divided by 18 positive divisors. The sum of these divisors (counting 21681844) is 1, the average is 0.055555555555556.

Base conversion 21681844

Base	System	Value
2	Binary	1010010101101011010110100
3	Ternary	1111210112220021
4	Quaternary	1102231122310
5	Quinary	21022304334
6	Senary	2052414524
8	Octal	122553264
10	Decimal	21681844
12	Duodecimal	7317444
16	Hexadecimal	14ad6b4
20	Vigesimal	6fa4c4
36	Base36	cwptg

Cryptographic Hash Functions

md5	087cfa0c2eaa31873b3adddbdf6b79b8
sha1	fb080976f63ed84c9ab4af0c70a308c76d36c0bf
sha256	e5fd3334727162eaac86f8403e42a1245763f6cbba803b4e1508117540410766
sha512	46c97d600d777992c2f5bd670d21ccc5330341dab2d1e9a82d7f9e289ee9effb6be2707e1bfa9d25f465c22fec7d8b07fc0cdf61983a6ebb219970edd4d4081c
ripemd-160	2fdec3925c98e7498b6009123e04f1f14142f33f

21681844 as geometric shapes

Circle

Radius = n

Diameter	43363688
Circumference	136231043.65336
Area	1.4768701182247E+15

Sphere

Radius = n

Volume	4.2695023348812E+22
Surface area	5.9074804728987E+15
Circumference	136231043.65336

Square

Length = n

Perimeter	86727376
Area	470102359240336
Diagonal	30662757.842058

Cube

Length = n

Surface area	2820614155442016
Volume	1.0192686017081E+22
Space diagonal	37554055.409782

Equilateral Triangle

Length = n

Perimeter	65045532
Area	2.0356029274056E+14
Altitude	18777027.704891

Triangular Pyramid

Length = n

Surface area	2.0356029274056E+14
Volume	1.2012195668639E+21
Height	10220919.280686