21861216 (number)

21861216 is an even 8-digits composite number following 21861215 and preceding 21861217. In scientific notation, it is written as 2.1861216 × 10^7. The sum of its digits is 27. It has a total of 9 prime factors and 72 positive divisors. There are 6725376 positive integers (up to 21861216) that are relatively prime to 21861216.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand two hundred sixteen

Notation

Scientific notation 2.1861216 × 10^7
Engineering notation 2.1861216 × 10^6

Prime Factorization of 21861216

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 5839

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 455442
Product of the distinct prime numbers

The prime factorization of 21861216 is 2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 5839. Since it has a total of 9 prime factors.

Most popular turbo-numbers

6, 4, 46, 36, 916, 882, 2717, 3220, 12795, 17105, 811064, 11790, 8606662, 7699101, 44144386, 94569081, 723452427, 924399136, 7742928051, 3433092680

Basic calculations (n = 21861216)

Multiplication

n×y
n×2 43722432
n×3 65583648
n×4 87444864
n×5 109306080

Division

n÷y
n÷2 10930608
n÷3 7287072
n÷3 5465304
n÷5 4372243.2

Exponentiation

ny
n2 477912764998656
n3 1.0447754184793E+22
n4 2.2840061094866E+29
n5 4.9931150904806E+36

Nth Root

y√n
2√n 4675.597929677
3√n 279.6134802885
4√n 68.378344010929
5√n 29.372090864973

Divisors of 21861216

1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5839, 11678, 17517, 23356, 35034, 46712, 52551, 70068, 75907, 93424, 105102, 140136, 151814, 186848, 210204, 227721, 280272, 303628, 420408, 455442, 560544, 607256, 683163, 840816, 910884, 1214512, 1366326, 1681632, 1821768, 2429024, 2732652, 3643536, 5465304, 7287072, 10930608, 21861216

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21861215
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21861216 can be divided by 72 positive divisors. The sum of these divisors (counting 21861216) is 1, the average is 0.013888888888889.

Base conversion 21861216

Base System Value
2 Binary 1010011011001001101100000
3 Ternary 1112010122221200
4 Quaternary 1103121031200
5 Quinary 21044024331
6 Senary 2100321200
8 Octal 123311540
10 Decimal 21861216
12 Duodecimal 73a3200
16 Hexadecimal 14d9360
20 Vigesimal 6gcd0g
36 Base36 d0k80

Cryptographic Hash Functions

md5 f6d9954d184a95fa65e327fff6faac1d
sha1 98303b516d568e52d1ee72215af1408a9c2d628d
sha256 153d7fb36d76026b7e0a3824fc32fad46549460603b54d3b4aa6ca9fd92cf333
sha512 7d92349b2f51451e10170f55334ff245e4642f398b99f9ddbece5d92b55cd923ef3a702c2439d09e527121ff232cf762f2416d289346461b9fea19224c704362
ripemd-160 3938e33081c93ecf658a135e792180fdc1fa3ccb

21861216 as geometric shapes

Circle

Radius = n
Diameter 43722432
Circumference 137358071.16828
Area 1.5014072315766E+15

Sphere

Radius = n
Volume 4.3763450391276E+22
Surface area 6.0056289263063E+15
Circumference 137358071.16828

Square

Length = n
Perimeter 87444864
Area 477912764998656
Diagonal 30916428.157168

Cube

Length = n
Surface area 2867476589991936
Volume 1.0447754184793E+22
Space diagonal 37864736.827238

Equilateral Triangle

Length = n
Perimeter 65583648
Area 2.0694229764085E+14
Altitude 18932368.413619

Triangular Pyramid

Length = n
Surface area 2.0694229764085E+14
Volume 1.2312796387062E+21
Height 10305476.052389