21493815 (number)

21493815 is an odd 8-digits composite number following 21493814 and preceding 21493816. In scientific notation, it is written as 2.1493815 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 9777024 positive integers (up to 21493815) that are relatively prime to 21493815.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1493815 × 10^7
Engineering notation 2.1493815 × 10^6

Prime Factorization of 21493815

Prime Factorization 3 × 7 × 5 × 277 × 739

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21493815
Product of the distinct prime numbers

The prime factorization of 21493815 is 3 × 7 × 5 × 277 × 739. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 44, 96, 192, 685, 2106, 6393, 38274, 52447, 628891, 527928, 3984745, 6760577, 2212827, 85913697, 15198335, 510834547, 3639235901, 5060619963

Basic calculations (n = 21493815)

Multiplication

n×y
n×2 42987630
n×3 64481445
n×4 85975260
n×5 107469075

Division

n÷y
n÷2 10746907.5
n÷3 7164605
n÷3 5373453.75
n÷5 4298763

Exponentiation

ny
n2 461984083254225
n3 9.9298004184109E+21
n4 2.1342929318025E+29
n5 4.587409743197E+36

Nth Root

y√n
2√n 4636.1422540729
3√n 278.0382217171
4√n 68.089222745401
5√n 29.272694566695

Divisors of 21493815

1, 3, 5, 7, 15, 21, 35, 105, 277, 739, 831, 1385, 1939, 2217, 3695, 4155, 5173, 5817, 9695, 11085, 15519, 25865, 29085, 77595, 204703, 614109, 1023515, 1432921, 3070545, 4298763, 7164605, 21493815

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21493814
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21493815 can be divided by 32 positive divisors. The sum of these divisors (counting 21493815) is 1, the average is 0.03125.

Base conversion 21493815

Base System Value
2 Binary 1010001111111100000110111
3 Ternary 1111102222222020
4 Quaternary 1101333200313
5 Quinary 21000300230
6 Senary 2044404223
8 Octal 121774067
10 Decimal 21493815
12 Duodecimal 7246673
16 Hexadecimal 147f837
20 Vigesimal 6e6eaf
36 Base36 csoqf

Cryptographic Hash Functions

md5 115da7841769fb0514b87112da360962
sha1 6002b863cfe4d806fbac73eecfd476e81fcf981e
sha256 601762817ad266a121b807b7dced80fd1b746338aa30c0674a689466f3e53f5a
sha512 d6f456631bc8f17b8dd00384fe9da8d49eb3136c6d3d21bb2209be9a782be437c452f1537ad08acaecb4347d441e13f2ae8c815f128fede7ec932c3ce31a407d
ripemd-160 97f8a46ac3f56ad8a3f59e74fdf6d15ffc463025

21493815 as geometric shapes

Circle

Radius = n
Diameter 42987630
Circumference 135049622.60324
Area 1.4513658020269E+15

Sphere

Radius = n
Volume 4.1593850728123E+22
Surface area 5.8054632081076E+15
Circumference 135049622.60324

Square

Length = n
Perimeter 85975260
Area 461984083254225
Diagonal 30396844.680138

Cube

Length = n
Surface area 2771904499525350
Volume 9.9298004184109E+21
Space diagonal 37228379.628486

Equilateral Triangle

Length = n
Perimeter 64481445
Area 2.0004497612111E+14
Altitude 18614189.814243

Triangular Pyramid

Length = n
Surface area 2.0004497612111E+14
Volume 1.1702382019479E+21
Height 10132281.560046