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

21243749 (number)

21243749 is an odd 8-digits composite number following 21243748 and preceding 21243750. In scientific notation, it is written as 2.1243749 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21227436 positive integers (up to 21243749) that are relatively prime to 21243749.

Interesting facts

21243749 has 4 divisors, whose sum is 21260064
The reverse of 21243749 is 94734212
Previous prime number is 1427

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million two hundred forty-three thousand seven hundred forty-nine

Notation

Scientific notation	2.1243749 × 10^7
Engineering notation	2.1243749 × 10^6

Prime Factorization of 21243749

Prime Factorization 1427 × 14887

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21243749	Product of the distinct prime numbers

The prime factorization of 21243749 is 1427 × 14887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 3, 75, 45, 287, 389, 864, 5347, 8135, 35751, 814459, 809703, 4538690, 2078390, 32518824, 79530183, 322052089, 777978549, 4791337551, 1433757789

Basic calculations (n = 21243749)

Multiplication

n×y

n×2	42487498
n×3	63731247
n×4	84974996
n×5	106218745

Division

n÷y

n÷2	10621874.5
n÷3	7081249.6666667
n÷3	5310937.25
n÷5	4248749.8

Exponentiation

n^y

n²	451296871575001
n³	9.5872374642246E+21
n⁴	2.0366886629338E+29
n⁵	4.3266902746512E+36

Nth Root

^y√n

²√n	4609.0941626311
³√n	276.9557506418
⁴√n	67.890309784468
⁵√n	29.204261753031

Divisors of 21243749

1, 1427, 14887, 21243749

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	-21243748	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 21243749 can be divided by 4 positive divisors. The sum of these divisors (counting 21243749) is 1, the average is 0.25.

Base conversion 21243749

Base	System	Value
2	Binary	1010001000010011101100101
3	Ternary	1110222021221112
4	Quaternary	1101002131211
5	Quinary	20414244444
6	Senary	2035154405
8	Octal	121023545
10	Decimal	21243749
12	Duodecimal	7145a05
16	Hexadecimal	1442765
20	Vigesimal	6cf979
36	Base36	cnbs5

Cryptographic Hash Functions

md5	e750490e6cc97134da7d7498ebd10c70
sha1	00686624fa10b56f58036b69b74261cae5c9790c
sha256	d3aafafb573bde7b406aa9f21a6a9dd3348ad335e6ee292196c41f7c08004134
sha512	8219eb94d7e1fe831da1dd1b161153aa3b37b0bc1a66a2805b091dd73e87bd2099e10b43a65d79545ff98ec43a84bbfc79c4c03bbbb4d09f0e0f61b10639625a
ripemd-160	41c54bf838782d3cc467926a8523a51e8bb0b77a

21243749 as geometric shapes

Circle

Radius = n

Diameter	42487498
Circumference	133478411.58621
Area	1.4177909363281E+15

Sphere

Radius = n

Volume	4.0158926381105E+22
Surface area	5.6711637453123E+15
Circumference	133478411.58621

Square

Length = n

Perimeter	84974996
Area	451296871575001
Diagonal	30043197.95145

Cube

Length = n

Surface area	2707781229450006
Volume	9.5872374642246E+21
Space diagonal	36795252.611241

Equilateral Triangle

Length = n

Perimeter	63731247
Area	1.954172777162E+14
Altitude	18397626.30562

Triangular Pyramid

Length = n

Surface area	1.954172777162E+14
Volume	1.1298667706332E+21
Height	10014399.31715