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

21491143 (number)

21491143 is an odd 8-digits composite number following 21491142 and preceding 21491144. In scientific notation, it is written as 2.1491143 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 21468040 positive integers (up to 21491143) that are relatively prime to 21491143.

Interesting facts

21491143 has 4 divisors, whose sum is 21514248
The reverse of 21491143 is 34119412
Previous prime number is 971

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty-one million four hundred ninety-one thousand one hundred forty-three

Notation

Scientific notation	2.1491143 × 10^7
Engineering notation	2.1491143 × 10^6

Prime Factorization of 21491143

Prime Factorization 971 × 22133

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491143	Product of the distinct prime numbers

The prime factorization of 21491143 is 971 × 22133. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 73, 15, 829, 263, 373, 428, 91273, 96528, 358950, 960998, 5950057, 5755340, 6416086, 91259909, 905416938, 694864606, 2213196092, 6374272252

Basic calculations (n = 21491143)

Multiplication

n×y

n×2	42982286
n×3	64473429
n×4	85964572
n×5	107455715

Division

n÷y

n÷2	10745571.5
n÷3	7163714.3333333
n÷3	5372785.75
n÷5	4298228.6

Exponentiation

n^y

n²	461869227446449
n³	9.9260976143512E+21
n⁴	2.1332318326198E+29
n⁵	4.5845590366984E+36

Nth Root

^y√n

²√n	4635.8540744937
³√n	278.0266998147
⁴√n	68.087106521674
⁵√n	29.271966724481

Divisors of 21491143

1, 971, 22133, 21491143

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	-21491142	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 21491143 can be divided by 4 positive divisors. The sum of these divisors (counting 21491143) is 1, the average is 0.25.

Base conversion 21491143

Base	System	Value
2	Binary	1010001111110110111000111
3	Ternary	1111102212022021
4	Quaternary	1101332313013
5	Quinary	21000204033
6	Senary	2044344011
8	Octal	121766707
10	Decimal	21491143
12	Duodecimal	7245007
16	Hexadecimal	147edc7
20	Vigesimal	6e67h3
36	Base36	csmo7

Cryptographic Hash Functions

md5	7ca614054f93f854211e1bac28a15eac
sha1	13b12cb922ef8376495558a0ad3ed327f6a6f263
sha256	7e860bceefe6414e793964ff71c751474db789fc4f5db7e597f98de1ebbedd82
sha512	d620541047a6a79be5f9bf22c67d0b1241dd3a044fc19c1e94e190b1fa4009a694e679f3903f381d0e8c42205eee0f4a8a4d4e6b0db8e6269b77310dc65ab0d2
ripemd-160	cc36bd2c3fb52fbaf8fd00b328d22bc1f5b6e9ae

21491143 as geometric shapes

Circle

Radius = n

Diameter	42982286
Circumference	135032833.9321
Area	1.451004971865E+15

Sphere

Radius = n

Volume	4.1578340458748E+22
Surface area	5.8040198874598E+15
Circumference	135032833.9321

Square

Length = n

Perimeter	85964572
Area	461869227446449
Diagonal	30393065.9015

Cube

Length = n

Surface area	2771215364678694
Volume	9.9260976143512E+21
Space diagonal	37223751.588728

Equilateral Triangle

Length = n

Perimeter	64473429
Area	1.9999524209746E+14
Altitude	18611875.794364

Triangular Pyramid

Length = n

Surface area	1.9999524209746E+14
Volume	1.1698018223046E+21
Height	10131021.967167