18821493 (number)

18821493 is an odd 8-digits composite number following 18821492 and preceding 18821494. In scientific notation, it is written as 1.8821493 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 11781504 positive integers (up to 18821493) that are relatively prime to 18821493.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8821493 × 10^7
Engineering notation 1.8821493 × 10^6

Prime Factorization of 18821493

Prime Factorization 3 × 3 × 29 × 37 × 1949

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6273831
Product of the distinct prime numbers

The prime factorization of 18821493 is 3 × 3 × 29 × 37 × 1949. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 3, 4, 25, 378, 290, 937, 7272, 72735, 78212, 843539, 907058, 7208752, 962050, 3238544, 22304225, 412056179, 771851853, 407933842, 5783755701

Basic calculations (n = 18821493)

Multiplication

n×y
n×2 37642986
n×3 56464479
n×4 75285972
n×5 94107465

Division

n÷y
n÷2 9410746.5
n÷3 6273831
n÷3 4705373.25
n÷5 3764298.6

Exponentiation

ny
n2 354248598749049
n3 6.667487521615E+21
n4 1.2549206971566E+29
n5 2.3619481117089E+36

Nth Root

y√n
2√n 4338.3744651655
3√n 266.00187026405
4√n 65.866337875773
5√n 28.505641181902

Divisors of 18821493

1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 1949, 3219, 5847, 9657, 17541, 56521, 72113, 169563, 216339, 508689, 649017, 2091277, 6273831, 18821493

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 -18821492
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 18821493 can be divided by 24 positive divisors. The sum of these divisors (counting 18821493) is 1, the average is 0.041666666666667.

Base conversion 18821493

Base System Value
2 Binary 1000111110011000101110101
3 Ternary 1022102020020100
4 Quaternary 1013303011311
5 Quinary 14304241433
6 Senary 1511224313
8 Octal 107630565
10 Decimal 18821493
12 Duodecimal 6378099
16 Hexadecimal 11f3175
20 Vigesimal 5hcded
36 Base36 b7er9

Cryptographic Hash Functions

md5 76af7a5b891cc3a8cd620182273ecd88
sha1 3fdbf264813172bd2bc83304d2b21831cb1e5608
sha256 77f13bd6fa254c0bd952e5310cfd1c3e3cd69a2d0374428cefb7095940f120e8
sha512 c3f1091d29bdff675ca835ee9788652f82a2721b1906a1a1452bc0a758bb2c9ee5a1c9a84026f23bd595839bf5574d62ae89e789f544dbc677df4e4e999e590f
ripemd-160 ef6022c3c03d7f4027fde82723e15a4e7b32b641

18821493 as geometric shapes

Circle

Radius = n
Diameter 37642986
Circumference 118258928.27678
Area 1.1129047953745E+15

Sphere

Radius = n
Volume 2.7928706421077E+22
Surface area 4.451619181498E+15
Circumference 118258928.27678

Square

Length = n
Perimeter 75285972
Area 354248598749049
Diagonal 26617610.66471

Cube

Length = n
Surface area 2125491592494294
Volume 6.667487521615E+21
Space diagonal 32599782.150302

Equilateral Triangle

Length = n
Perimeter 56464479
Area 1.5339414288586E+14
Altitude 16299891.075151

Triangular Pyramid

Length = n
Surface area 1.5339414288586E+14
Volume 7.8577094000178E+20
Height 8872536.8882368