21449905 (number)

21449905 is an odd 8-digits composite number following 21449904 and preceding 21449906. In scientific notation, it is written as 2.1449905 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 16760688 positive integers (up to 21449905) that are relatively prime to 21449905.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred forty-nine thousand nine hundred five

Notation

Scientific notation 2.1449905 × 10^7
Engineering notation 2.1449905 × 10^6

Prime Factorization of 21449905

Prime Factorization 5 × 43 × 99767

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21449905
Product of the distinct prime numbers

The prime factorization of 21449905 is 5 × 43 × 99767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 24, 89, 999, 657, 459, 4384, 56012, 82068, 320777, 855575, 4519829, 2010023, 37789047, 15938351, 76184016, 9831125, 1034996207, 8915384818

Basic calculations (n = 21449905)

Multiplication

n×y
n×2 42899810
n×3 64349715
n×4 85799620
n×5 107249525

Division

n÷y
n÷2 10724952.5
n÷3 7149968.3333333
n÷3 5362476.25
n÷5 4289981

Exponentiation

ny
n2 460098424509025
n3 9.8690674963683E+21
n4 2.1169056023569E+29
n5 4.5407424064523E+36

Nth Root

y√n
2√n 4631.4042147064
3√n 277.84875664684
4√n 68.054420978408
5√n 29.260724465877

Divisors of 21449905

1, 5, 43, 215, 99767, 498835, 4289981, 21449905

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21449904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21449905 can be divided by 8 positive divisors. The sum of these divisors (counting 21449905) is 1, the average is 0.125.

Base conversion 21449905

Base System Value
2 Binary 1010001110100110010110001
3 Ternary 1111100202201221
4 Quaternary 1101310302301
5 Quinary 20442344110
6 Senary 2043425041
8 Octal 121646261
10 Decimal 21449905
12 Duodecimal 7225181
16 Hexadecimal 1474cb1
20 Vigesimal 6e14f5
36 Base36 crqup

Cryptographic Hash Functions

md5 1da4d10625d2a13c63fe2d50c2205352
sha1 9c7a858a73c7468b0de5c8b716eeb2f995100f77
sha256 29be772e514943966c8d5828c3328faef10ba4178a2e935bd39bbe491ab51dc4
sha512 fb5438c4709855ff3b0c1fa86bb1434df807781d8f654124cd32ca723154f715cb4d356ae8a1c26abbed63c737e182e2b5b3776c05178f2ebfb319008c00367f
ripemd-160 d926c3c2a6e22c3a22fcbefb0c1f347839ab9410

21449905 as geometric shapes

Circle

Radius = n
Diameter 42899810
Circumference 134773727.9364
Area 1.4454418303658E+15

Sphere

Radius = n
Volume 4.1339453259163E+22
Surface area 5.7817673214632E+15
Circumference 134773727.9364

Square

Length = n
Perimeter 85799620
Area 460098424509025
Diagonal 30334746.562614

Cube

Length = n
Surface area 2760590547054150
Volume 9.8690674963683E+21
Space diagonal 37152325.277526

Equilateral Triangle

Length = n
Perimeter 64349715
Area 1.9922846193301E+14
Altitude 18576162.638763

Triangular Pyramid

Length = n
Surface area 1.9922846193301E+14
Volume 1.163080758445E+21
Height 10111582.187538