21939986 (number)

21939986 is an even 8-digits composite number following 21939985 and preceding 21939987. In scientific notation, it is written as 2.1939986 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 10708464 positive integers (up to 21939986) that are relatively prime to 21939986.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-nine thousand nine hundred eighty-six

Notation

Scientific notation 2.1939986 × 10^7
Engineering notation 2.1939986 × 10^6

Prime Factorization of 21939986

Prime Factorization 2 × 53 × 263 × 787

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21939986
Product of the distinct prime numbers

The prime factorization of 21939986 is 2 × 53 × 263 × 787. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 34, 5, 20, 506, 305, 4494, 91049, 37969, 165000, 638587, 5550352, 8265705, 37970646, 91478222, 407325548, 87510745, 6501805464, 5444340780

Basic calculations (n = 21939986)

Multiplication

n×y
n×2 43879972
n×3 65819958
n×4 87759944
n×5 109699930

Division

n÷y
n÷2 10969993
n÷3 7313328.6666667
n÷3 5484996.5
n÷5 4387997.2

Exponentiation

ny
n2 481362985680196
n3 1.0561097166742E+22
n4 2.3171032398295E+29
n5 5.0837212642414E+36

Nth Root

y√n
2√n 4684.0138770076
3√n 279.94891074677
4√n 68.43985591019
5√n 29.393227037819

Divisors of 21939986

1, 2, 53, 106, 263, 526, 787, 1574, 13939, 27878, 41711, 83422, 206981, 413962, 10969993, 21939986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21939985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21939986 can be divided by 16 positive divisors. The sum of these divisors (counting 21939986) is 1, the average is 0.0625.

Base conversion 21939986

Base System Value
2 Binary 1010011101100011100010010
3 Ternary 1112021200000002
4 Quaternary 1103230130102
5 Quinary 21104034421
6 Senary 2102130002
8 Octal 123543422
10 Decimal 21939986
12 Duodecimal 7420902
16 Hexadecimal 14ec712
20 Vigesimal 6h29j6
36 Base36 d2902

Cryptographic Hash Functions

md5 5ce452c1bb5ddc31a8d57b1f177c0e23
sha1 00bfb6ec7bbab69f0ae3be3d7eed25b71944d418
sha256 5d62756fee5c1fb3775bd51dfd49d825c0c605d878209eb6aa54382a8351d388
sha512 7f8857902948d33e3021f3db666293ca73e9d5a64b9795e80d9d50c2ed2b4e7800e84aa5cb81b05cc4504f8e071c8f479796acf2ac5a20f180613a78d685e682
ripemd-160 e41bfe51bc6a27423394280d2faab8a23b5c79ae

21939986 as geometric shapes

Circle

Radius = n
Diameter 43879972
Circumference 137852997.67493
Area 1.512246419523E+15

Sphere

Radius = n
Volume 4.4238220363845E+22
Surface area 6.0489856780918E+15
Circumference 137852997.67493

Square

Length = n
Perimeter 87759944
Area 481362985680196
Diagonal 31027825.759476

Cube

Length = n
Surface area 2888177914081176
Volume 1.0561097166742E+22
Space diagonal 38001170.46935

Equilateral Triangle

Length = n
Perimeter 65819958
Area 2.0843628702029E+14
Altitude 19000585.234675

Triangular Pyramid

Length = n
Surface area 2.0843628702029E+14
Volume 1.2446372372288E+21
Height 10342608.586492