21749940 (number)

21749940 is an even 8-digits composite number following 21749939 and preceding 21749941. In scientific notation, it is written as 2.1749940 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 5799936 positive integers (up to 21749940) that are relatively prime to 21749940.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred forty-nine thousand nine hundred forty

Notation

Scientific notation 2.1749940 × 10^7
Engineering notation 2.1749940 × 10^6

Prime Factorization of 21749940

Prime Factorization 2 × 2 × 15 × 3 × 120833

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10874970
Product of the distinct prime numbers

The prime factorization of 21749940 is 2 × 2 × 15 × 3 × 120833. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 2, 54, 88, 85, 33, 8425, 4865, 76915, 99264, 578743, 553445, 7920683, 4322603, 9334073, 21352273, 350144434, 882117850, 4798801193, 6926737260

Basic calculations (n = 21749940)

Multiplication

n×y
n×2 43499880
n×3 65249820
n×4 86999760
n×5 108749700

Division

n÷y
n÷2 10874970
n÷3 7249980
n÷3 5437485
n÷5 4349988

Exponentiation

ny
n2 473059890003600
n3 1.0289024223985E+22
n4 2.2378565953022E+29
n5 4.8673246676427E+36

Nth Root

y√n
2√n 4663.6830938648
3√n 279.1382519036
4√n 68.291164098035
5√n 29.342128361479

Divisors of 21749940

1, 2, 3, 4, 6, 12, 15, 30, 45, 60, 90, 180, 120833, 241666, 362499, 483332, 724998, 1449996, 1812495, 3624990, 5437485, 7249980, 10874970, 21749940

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21749939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21749940 can be divided by 24 positive divisors. The sum of these divisors (counting 21749940) is 1, the average is 0.041666666666667.

Base conversion 21749940

Base System Value
2 Binary 1010010111110000010110100
3 Ternary 1111221000022100
4 Quaternary 1102332002310
5 Quinary 21031444230
6 Senary 2054102100
8 Octal 122760264
10 Decimal 21749940
12 Duodecimal 734a930
16 Hexadecimal 14be0b4
20 Vigesimal 6fieh0
36 Base36 cy6d0

Cryptographic Hash Functions

md5 7e1fba3cfc05f6cff62b2529b047c02c
sha1 9465b550469ef88b9021ec0f3e7a24b1eed3290c
sha256 68016b7ed4ed4f985a86f7d3244892157d90cde81222c4fe0c9964a066fb8f24
sha512 6f5dd999e2b1bd951072f48a8aa4ad899248ef5bd7469228ae07d3821d6aa7b854ddee97c7147a89d726e7ef2c6ef133ecc12668db03c349ac6e7b21fd84f60e
ripemd-160 a05e04ae87eb0b3af161bb33a58c15b024454f0c

21749940 as geometric shapes

Circle

Radius = n
Diameter 43499880
Circumference 136658903.44004
Area 1.4861614751433E+15

Sphere

Radius = n
Volume 4.3098563886238E+22
Surface area 5.9446459005732E+15
Circumference 136658903.44004

Square

Length = n
Perimeter 86999760
Area 473059890003600
Diagonal 30759060.128801

Cube

Length = n
Surface area 2838359340021600
Volume 1.0289024223985E+22
Space diagonal 37672001.141575

Equilateral Triangle

Length = n
Perimeter 65249820
Area 2.0484094112729E+14
Altitude 18836000.570787

Triangular Pyramid

Length = n
Surface area 2.0484094112729E+14
Volume 1.2125731334287E+21
Height 10253020.042934