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

21821390 (number)

21821390 is an even 8-digits composite number following 21821389 and preceding 21821391. In scientific notation, it is written as 2.1821390 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 8728552 positive integers (up to 21821390) that are relatively prime to 21821390.

Interesting facts

21821390 has 8 divisors, whose sum is 39278520
The reverse of 21821390 is 09312812
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million eight hundred twenty-one thousand three hundred ninety

Notation

Scientific notation	2.1821390 × 10^7
Engineering notation	2.1821390 × 10^6

Prime Factorization of 21821390

Prime Factorization 2 × 5 × 2182139

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21821390	Product of the distinct prime numbers

The prime factorization of 21821390 is 2 × 5 × 2182139. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 3, 75, 292, 744, 9001, 9881, 32356, 40863, 449525, 268379, 9208568, 1401190, 62213867, 13308680, 847895992, 353919803, 1359420441, 1568952592

Basic calculations (n = 21821390)

Multiplication

n×y

n×2	43642780
n×3	65464170
n×4	87285560
n×5	109106950

Division

n÷y

n÷2	10910695
n÷3	7273796.6666667
n÷3	5455347.5
n÷5	4364278

Exponentiation

n^y

n²	476173061532100
n³	1.0390758083186E+22
n⁴	2.2674078452885E+29
n⁵	4.9477990881101E+36

Nth Root

^y√n

²√n	4671.3370676927
³√n	279.44358038233
⁴√n	68.347180393142
⁵√n	29.361381248049

Divisors of 21821390

1, 2, 5, 10, 2182139, 4364278, 10910695, 21821390

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21821389	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21821390 can be divided by 8 positive divisors. The sum of these divisors (counting 21821390) is 1, the average is 0.125.

Base conversion 21821390

Base	System	Value
2	Binary	1010011001111011111001110
3	Ternary	1112001122022122
4	Quaternary	1103033133032
5	Quinary	21041241030
6	Senary	2055412542
8	Octal	123173716
10	Decimal	21821390
12	Duodecimal	7384152
16	Hexadecimal	14cf7ce
20	Vigesimal	6g7d9a
36	Base36	czphq

Cryptographic Hash Functions

md5	a9ca00e27d1152580471c0b906dba7af
sha1	497d5789dcbf065328bb133886c4226683a06845
sha256	c002cc7505badebd44423700010fe666079b4bf28c1be5f0a074d43af29df17c
sha512	27b6d4b594d63e1b4ac71b6b4cc7e2ecade03fe4dda2e8aa6acdb07039758f9b7624c8456b3a8853b529acddd6fcecc0f7090b00e66ed13a8b314b0f77522617
ripemd-160	36c155d4417dafd2df3b465495dd277f3c95cd78

21821390 as geometric shapes

Circle

Radius = n

Diameter	43642780
Circumference	137107837.03024
Area	1.4959417919466E+15

Sphere

Radius = n

Volume	4.3524705679154E+22
Surface area	5.9837671677864E+15
Circumference	137107837.03024

Square

Length = n

Perimeter	87285560
Area	476173061532100
Diagonal	30860105.687833

Cube

Length = n

Surface area	2857038369192600
Volume	1.0390758083186E+22
Space diagonal	37795756.171775

Equilateral Triangle

Length = n

Perimeter	65464170
Area	2.061889839423E+14
Altitude	18897878.085888

Triangular Pyramid

Length = n

Surface area	2.061889839423E+14
Volume	1.224562583715E+21
Height	10286701.895944