20999721 (number)

20999721 is an odd 8-digits composite number following 20999720 and preceding 20999722. In scientific notation, it is written as 2.0999721 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 13861800 positive integers (up to 20999721) that are relatively prime to 20999721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0999721 × 10^7
Engineering notation 2.0999721 × 10^6

Prime Factorization of 20999721

Prime Factorization 3 × 151 × 307 × 151

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 139071
Product of the distinct prime numbers

The prime factorization of 20999721 is 3 × 151 × 307 × 151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 45, 15, 324, 26, 5732, 1180, 17393, 89861, 806210, 240923, 726087, 1381612, 97413378, 66052640, 470358142, 719325019, 4711868267, 6900958765

Basic calculations (n = 20999721)

Multiplication

n×y
n×2 41999442
n×3 62999163
n×4 83998884
n×5 104998605

Division

n÷y
n÷2 10499860.5
n÷3 6999907
n÷3 5249930.25
n÷5 4199944.2

Exponentiation

ny
n2 440988282077841
n3 9.260630887904E+21
n4 1.9447066492997E+29
n5 4.0838297062138E+36

Nth Root

y√n
2√n 4582.545253459
3√n 275.89119582342
4√n 67.694499432812
5√n 29.136857164353

Divisors of 20999721

1, 3, 151, 307, 453, 921, 22801, 46357, 68403, 139071, 6999907, 20999721

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 -20999720
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 20999721 can be divided by 12 positive divisors. The sum of these divisors (counting 20999721) is 1, the average is 0.083333333333333.

Base conversion 20999721

Base System Value
2 Binary 1010000000110111000101001
3 Ternary 1110111220012110
4 Quaternary 1100012320221
5 Quinary 20333442341
6 Senary 2030032533
8 Octal 120067051
10 Decimal 20999721
12 Duodecimal 7048749
16 Hexadecimal 1406e29
20 Vigesimal 6b4j61
36 Base36 ci3hl

Cryptographic Hash Functions

md5 620ceb00abfda8fe5108e79a90c2454c
sha1 565395874dedbe368788a020c669ee7036f6dc2c
sha256 b2fae77ea34e0664ad0a26e69dbea7f4459cb233439f3d1a0d122edfb64e5078
sha512 5ffa6bcbba959862e58c3cc47a92ed8f2cf077bf1368225ce9f8607b55d8e2287a2970f63a304d0353ab00f4ac3359884d2c184d55301ab7a99d1779abf693a6
ripemd-160 ef7f9711aec31dfabf730ed02f103e98e4af724c

20999721 as geometric shapes

Circle

Radius = n
Diameter 41999442
Circumference 131945138.44207
Area 1.3854055472949E+15

Sphere

Radius = n
Volume 3.8790839953394E+22
Surface area 5.5416221891797E+15
Circumference 131945138.44207

Square

Length = n
Perimeter 83998884
Area 440988282077841
Diagonal 29698090.244251

Cube

Length = n
Surface area 2645929692467046
Volume 9.260630887904E+21
Space diagonal 36372583.716771

Equilateral Triangle

Length = n
Perimeter 62999163
Area 1.9095352752533E+14
Altitude 18186291.858386

Triangular Pyramid

Length = n
Surface area 1.9095352752533E+14
Volume 1.0913758164837E+21
Height 9899363.4147504