21253387 (number)

21253387 is an odd 8-digits composite number following 21253386 and preceding 21253388. In scientific notation, it is written as 2.1253387 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 21242736 positive integers (up to 21253387) that are relatively prime to 21253387.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred fifty-three thousand three hundred eighty-seven

Notation

Scientific notation 2.1253387 × 10^7
Engineering notation 2.1253387 × 10^6

Prime Factorization of 21253387

Prime Factorization 2659 × 7993

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21253387
Product of the distinct prime numbers

The prime factorization of 21253387 is 2659 × 7993. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21253387)

Multiplication

n×y
n×2 42506774
n×3 63760161
n×4 85013548
n×5 106266935

Division

n÷y
n÷2 10626693.5
n÷3 7084462.3333333
n÷3 5313346.75
n÷5 4250677.4

Exponentiation

ny
n2 451706458971769
n3 9.6002921829266E+21
n4 2.0403872507681E+29
n5 4.3365139870441E+36

Nth Root

y√n
2√n 4610.1395857392
3√n 276.99762799517
4√n 67.898008702312
5√n 29.206911187544

Divisors of 21253387

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 -21253386
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 21253387 can be divided by 4 positive divisors. The sum of these divisors (counting 21253387) is 1, the average is 0.25.

Base conversion 21253387

Base System Value
2 Binary 1010001000100110100001011
3 Ternary 1110222210011111
4 Quaternary 1101010310023
5 Quinary 20420102022
6 Senary 2035311151
8 Octal 121046413
10 Decimal 21253387
12 Duodecimal 714b4b7
16 Hexadecimal 1444d0b
20 Vigesimal 6cgd97
36 Base36 cnj7v

Cryptographic Hash Functions

md5 f9667cdc535d923dca6a9867928b2898
sha1 d57bca3faef5ae31c7ed323aecb0dca48f0847d3
sha256 eeb81a3b4d676bb12b9fcef366606e037939b73c935213752bc8cc362969ab54
sha512 60c800d7b093c16572b95a5dd4b54b7cf43f864c64917264c70441da7aa4f2cf30a0f05afaea6eae68bdf24f6f271b9b8cff3c50473a213171370161c820690f
ripemd-160 cc67f8693fdb4f5d161ef958a32b5cdd4666e479

21253387 as geometric shapes

Circle

Radius = n
Diameter 42506774
Circumference 133538968.9262
Area 1.4190776930848E+15

Sphere

Radius = n
Volume 4.021360985893E+22
Surface area 5.6763107723391E+15
Circumference 133538968.9262

Square

Length = n
Perimeter 85013548
Area 451706458971769
Diagonal 30056828.141764

Cube

Length = n
Surface area 2710238753830614
Volume 9.6002921829266E+21
Space diagonal 36811946.116924

Equilateral Triangle

Length = n
Perimeter 63760161
Area 1.9559463426153E+14
Altitude 18405973.058462

Triangular Pyramid

Length = n
Surface area 1.9559463426153E+14
Volume 1.1314052839866E+21
Height 10018942.713921