21493844 (number)

21493844 is an even 8-digits composite number following 21493843 and preceding 21493845. In scientific notation, it is written as 2.1493844 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 10737048 positive integers (up to 21493844) that are relatively prime to 21493844.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand eight hundred forty-four

Notation

Scientific notation 2.1493844 × 10^7
Engineering notation 2.1493844 × 10^6

Prime Factorization of 21493844

Prime Factorization 2 × 2 × 3319 × 1619

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10746922
Product of the distinct prime numbers

The prime factorization of 21493844 is 2 × 2 × 3319 × 1619. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 72, 12, 810, 426, 2862, 2185, 14080, 28812, 780200, 839224, 8259108, 4013964, 85030163, 14025233, 383395622, 954130106, 4583613156, 2457234542

Basic calculations (n = 21493844)

Multiplication

n×y
n×2 42987688
n×3 64481532
n×4 85975376
n×5 107469220

Division

n÷y
n÷2 10746922
n÷3 7164614.6666667
n÷3 5373461
n÷5 4298768.8

Exponentiation

ny
n2 461985329896336
n3 9.9298406110804E+21
n4 2.1343044503943E+29
n5 4.587440690528E+36

Nth Root

y√n
2√n 4636.1453816721
3√n 278.03834676245
4√n 68.089245712316
5√n 29.272702465784

Divisors of 21493844

1, 2, 4, 1619, 3238, 3319, 6476, 6638, 13276, 5373461, 10746922, 21493844

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21493843
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21493844 can be divided by 12 positive divisors. The sum of these divisors (counting 21493844) is 1, the average is 0.083333333333333.

Base conversion 21493844

Base System Value
2 Binary 1010001111111100001010100
3 Ternary 1111110000000022
4 Quaternary 1101333201110
5 Quinary 21000300334
6 Senary 2044404312
8 Octal 121774124
10 Decimal 21493844
12 Duodecimal 7246698
16 Hexadecimal 147f854
20 Vigesimal 6e6ec4
36 Base36 csor8

Cryptographic Hash Functions

md5 feef241d9afdb6b2f69e4171a7218adf
sha1 8765c45e1c8d8d4625da843e2a0b7e25012336e1
sha256 d8585070366158bfc3119fdcecaf8f4777907d8fa579fd3d4b2f736098bf90e2
sha512 0ea650089e82ff1fdfc0b9f9af9f01e41271c79b7f2e1a7d868b44614b042c51b6bca3b28dbef40ed871a754d516f3155f1716008f88738af9848ef8ec1be7f8
ripemd-160 73835f6722b486c389e5631f2061dcc39c5b33f3

21493844 as geometric shapes

Circle

Radius = n
Diameter 42987688
Circumference 135049804.81561
Area 1.4513697184686E+15

Sphere

Radius = n
Volume 4.1594019086784E+22
Surface area 5.8054788738743E+15
Circumference 135049804.81561

Square

Length = n
Perimeter 85975376
Area 461985329896336
Diagonal 30396885.692332

Cube

Length = n
Surface area 2771911979378016
Volume 9.9298406110804E+21
Space diagonal 37228429.857959

Equilateral Triangle

Length = n
Perimeter 64481532
Area 2.0004551593298E+14
Altitude 18614214.92898

Triangular Pyramid

Length = n
Surface area 2.0004551593298E+14
Volume 1.1702429386994E+21
Height 10132295.230777