21446721 (number)

21446721 is an odd 8-digits composite number following 21446720 and preceding 21446722. In scientific notation, it is written as 2.1446721 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 14243760 positive integers (up to 21446721) that are relatively prime to 21446721.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred forty-six thousand seven hundred twenty-one

Notation

Scientific notation 2.1446721 × 10^7
Engineering notation 2.1446721 × 10^6

Prime Factorization of 21446721

Prime Factorization 27 × 293 × 2711

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21446721
Product of the distinct prime numbers

The prime factorization of 21446721 is 27 × 293 × 2711. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21446721)

Multiplication

n×y
n×2 42893442
n×3 64340163
n×4 85786884
n×5 107233605

Division

n÷y
n÷2 10723360.5
n÷3 7148907
n÷3 5361680.25
n÷5 4289344.2

Exponentiation

ny
n2 459961841651841
n3 9.8646732885532E+21
n4 2.1156489577575E+29
n5 4.5373732930967E+36

Nth Root

y√n
2√n 4631.0604617085
3√n 277.83500811325
4√n 68.051895357209
5√n 29.259855728426

Divisors of 21446721

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 -21446720
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 21446721 can be divided by 8 positive divisors. The sum of these divisors (counting 21446721) is 1, the average is 0.125.

Base conversion 21446721

Base System Value
2 Binary 1010001110100000001000001
3 Ternary 1111100121101000
4 Quaternary 1101310001001
5 Quinary 20442243341
6 Senary 2043402213
8 Octal 121640101
10 Decimal 21446721
12 Duodecimal 7223369
16 Hexadecimal 1474041
20 Vigesimal 6e0gg1
36 Base36 croe9

Cryptographic Hash Functions

md5 266dcc711898ebdc2de7570c00ca1806
sha1 f81d0a602aecffcb03f262e234f39d5e16023240
sha256 408cd4f23d47e22533064930c2b87db2cfcd136e0f980b3ba513038d3f30dc80
sha512 69e4ff8b973d0fb23b33b4b84b5b4ff9f62c962a1044b0f1642dacb16ce30b8ff8cc78503c2ffe5f8534a910930d2188cd73b09f7550573d8454adc619ba15ae
ripemd-160 b4043a85e9049c7c60fcc4ea0fdf6d0389650dab

21446721 as geometric shapes

Circle

Radius = n
Diameter 42893442
Circumference 134753722.27438
Area 1.4450127426651E+15

Sphere

Radius = n
Volume 4.132104684451E+22
Surface area 5.7800509706602E+15
Circumference 134753722.27438

Square

Length = n
Perimeter 85786884
Area 459961841651841
Diagonal 30330243.706632

Cube

Length = n
Surface area 2759771049911046
Volume 9.8646732885532E+21
Space diagonal 37146810.427754

Equilateral Triangle

Length = n
Perimeter 64340163
Area 1.9916931982098E+14
Altitude 18573405.213877

Triangular Pyramid

Length = n
Surface area 1.9916931982098E+14
Volume 1.1625628960876E+21
Height 10110081.235544