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

21431818 (number)

21431818 is an even 8-digits composite number following 21431817 and preceding 21431819. In scientific notation, it is written as 2.1431818 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 10715908 positive integers (up to 21431818) that are relatively prime to 21431818.

Interesting facts

21431818 has 4 divisors, whose sum is 32147730
The reverse of 21431818 is 81813412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million four hundred thirty-one thousand eight hundred eighteen

Notation

Scientific notation	2.1431818 × 10^7
Engineering notation	2.1431818 × 10^6

Prime Factorization of 21431818

Prime Factorization 2 × 10715909

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21431818	Product of the distinct prime numbers

The prime factorization of 21431818 is 2 × 10715909. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 10, 45, 58, 791, 784, 1982, 272, 92099, 62578, 877665, 36251, 4319190, 592800, 30593947, 17013193, 641246442, 426975421, 3345422538, 9157914544

Basic calculations (n = 21431818)

Multiplication

n×y

n×2	42863636
n×3	64295454
n×4	85727272
n×5	107159090

Division

n÷y

n÷2	10715909
n÷3	7143939.3333333
n÷3	5357954.5
n÷5	4286363.6

Exponentiation

n^y

n²	459322822785124
n³	9.844123141177E+21
n⁴	2.1097745553129E+29
n⁵	4.5216304290498E+36

Nth Root

^y√n

²√n	4629.4511553747
³√n	277.77063876171
⁴√n	68.040070218767
⁵√n	29.255788151989

Divisors of 21431818

1, 2, 10715909, 21431818

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	-21431817	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 21431818 can be divided by 4 positive divisors. The sum of these divisors (counting 21431818) is 1, the average is 0.25.

Base conversion 21431818

Base	System	Value
2	Binary	1010001110000011000001010
3	Ternary	1111022211221001
4	Quaternary	1101300120022
5	Quinary	20441304233
6	Senary	2043205214
8	Octal	121603012
10	Decimal	21431818
12	Duodecimal	721680a
16	Hexadecimal	147060a
20	Vigesimal	6dijai
36	Base36	crcwa

Cryptographic Hash Functions

md5	aeebcbdbb4da53f494cb3c47cf32e0e5
sha1	47a59fe08a169a4549a4e85ee0f61a8fab8abf50
sha256	48723a52e3e8b820a3a4de83ebac5be6519a55c8b7fea839d6ed085d4de732d3
sha512	8b292843e7093f3f540b13cb6be1988dee09bb593f6dc0b71ece0161f1ecc4da2f5288d4eb6cedfe6364861bb8dab26c10a8cf68f9f1836a7975289bb18fc38f
ripemd-160	952eed5037e8b7d62121823f13995502825de519

21431818 as geometric shapes

Circle

Radius = n

Diameter	42863636
Circumference	134660083.96375
Area	1.4430052056879E+15

Sphere

Radius = n

Volume	4.1234966588473E+22
Surface area	5.7720208227515E+15
Circumference	134660083.96375

Square

Length = n

Perimeter	85727272
Area	459322822785124
Diagonal	30309167.681912

Cube

Length = n

Surface area	2755936936710744
Volume	9.844123141177E+21
Space diagonal	37120997.674569

Equilateral Triangle

Length = n

Perimeter	64295454
Area	1.9889261653495E+14
Altitude	18560498.837285

Triangular Pyramid

Length = n

Surface area	1.9889261653495E+14
Volume	1.1601410379936E+21
Height	10103055.893971