21506743 (number)

21506743 is an odd 8-digits composite number following 21506742 and preceding 21506744. In scientific notation, it is written as 2.1506743 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21284928 positive integers (up to 21506743) that are relatively prime to 21506743.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred six thousand seven hundred forty-three

Notation

Scientific notation 2.1506743 × 10^7
Engineering notation 2.1506743 × 10^6

Prime Factorization of 21506743

Prime Factorization 97 × 221719

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21506743
Product of the distinct prime numbers

The prime factorization of 21506743 is 97 × 221719. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21506743)

Multiplication

n×y
n×2 43013486
n×3 64520229
n×4 86026972
n×5 107533715

Division

n÷y
n÷2 10753371.5
n÷3 7168914.3333333
n÷3 5376685.75
n÷5 4301348.6

Exponentiation

ny
n2 462539994468049
n3 9.9477287882458E+21
n4 2.139432464825E+29
n5 4.6012224186848E+36

Nth Root

y√n
2√n 4637.5363071355
3√n 278.09395492388
4√n 68.099458934235
5√n 29.276215080666

Divisors of 21506743

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 -21506742
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 21506743 can be divided by 4 positive divisors. The sum of these divisors (counting 21506743) is 1, the average is 0.25.

Base conversion 21506743

Base System Value
2 Binary 1010010000010101010110111
3 Ternary 1111110122201001
4 Quaternary 1102002222313
5 Quinary 21001203433
6 Senary 2044544131
8 Octal 122025267
10 Decimal 21506743
12 Duodecimal 7252047
16 Hexadecimal 1482ab7
20 Vigesimal 6e86h3
36 Base36 csypj

Cryptographic Hash Functions

md5 f8d4d6bfc45b455d0c73468ed7169e10
sha1 c9c47f3404bffdcce25faadaffbaae332a112b7e
sha256 b0efa07c99112b92a90f16237677c55400461c421e98368aba406b48c728ab6c
sha512 d338cd63509925ff8ac76d70280d6e5ae5485ba7a139078716887c2f4a6d4a46b6076e7227e8c07063b6650a9d091cc09421ac4defdef07f19bc943199b94c36
ripemd-160 b2b4440fb1b8fae85bc3db0fe749e424d18e1b4e

21506743 as geometric shapes

Circle

Radius = n
Diameter 43013486
Circumference 135130851.62289
Area 1.4531122486123E+15

Sphere

Radius = n
Volume 4.1668948908075E+22
Surface area 5.8124489944491E+15
Circumference 135130851.62289

Square

Length = n
Perimeter 86026972
Area 462539994468049
Diagonal 30415127.633073

Cube

Length = n
Surface area 2775239966808294
Volume 9.9477287882458E+21
Space diagonal 37250771.581326

Equilateral Triangle

Length = n
Perimeter 64520229
Area 2.0028569273782E+14
Altitude 18625385.790663

Triangular Pyramid

Length = n
Surface area 2.0028569273782E+14
Volume 1.1723510805955E+21
Height 10138375.877691