21086787 (number)

21086787 is an odd 8-digits composite number following 21086786 and preceding 21086788. In scientific notation, it is written as 2.1086787 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 13859720 positive integers (up to 21086787) that are relatively prime to 21086787.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-six thousand seven hundred eighty-seven

Notation

Scientific notation 2.1086787 × 10^7
Engineering notation 2.1086787 × 10^6

Prime Factorization of 21086787

Prime Factorization 3 × 71 × 98999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21086787
Product of the distinct prime numbers

The prime factorization of 21086787 is 3 × 71 × 98999. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 100, 39, 155, 983, 5922, 5310, 32351, 28531, 799461, 9203, 2684228, 984626, 18209927, 39411535, 700266636, 493523249, 9858292694, 1360995136

Basic calculations (n = 21086787)

Multiplication

n×y
n×2 42173574
n×3 63260361
n×4 84347148
n×5 105433935

Division

n÷y
n÷2 10543393.5
n÷3 7028929
n÷3 5271696.75
n÷5 4217357.4

Exponentiation

ny
n2 444652585983369
n3 9.3762943696305E+21
n4 1.977159222217E+29
n5 4.1691935383975E+36

Nth Root

y√n
2√n 4592.0351697259
3√n 276.2719567869
4√n 67.764556884303
5√n 29.160977798215

Divisors of 21086787

1, 3, 71, 213, 98999, 296997, 7028929, 21086787

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21086786
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21086787 can be divided by 8 positive divisors. The sum of these divisors (counting 21086787) is 1, the average is 0.125.

Base conversion 21086787

Base System Value
2 Binary 1010000011100001001000011
3 Ternary 1110200022122010
4 Quaternary 1100130021003
5 Quinary 20344234122
6 Senary 2031544003
8 Octal 120341103
10 Decimal 21086787
12 Duodecimal 708b003
16 Hexadecimal 141c243
20 Vigesimal 6bfgj7
36 Base36 cjyo3

Cryptographic Hash Functions

md5 ff3119c27b76a0a2176d40789992ba46
sha1 886d02abb29db58eafb3de2a51cf11af15b017d8
sha256 8d51217e9b4f381dcbba6c8b43e9e08c072b0d342ecf68bc1786f516d3489e76
sha512 97806410bb98ec67e25e825705fef861cd5e43b462f4d541e20c3bebbfa951461493c1b38a547e571b785717869cd8fe9e7f2cba2beaf3dd0eef259321ee27f2
ripemd-160 09248b6a94585e1116816aad11969db5a12f81e4

21086787 as geometric shapes

Circle

Radius = n
Diameter 42173574
Circumference 132492190.25403
Area 1.3969172975251E+15

Sphere

Radius = n
Volume 3.9275330012702E+22
Surface area 5.5876691901002E+15
Circumference 132492190.25403

Square

Length = n
Perimeter 84347148
Area 444652585983369
Diagonal 29821220.162273

Cube

Length = n
Surface area 2667915515900214
Volume 9.3762943696305E+21
Space diagonal 36523386.452383

Equilateral Triangle

Length = n
Perimeter 63260361
Area 1.9254021766002E+14
Altitude 18261693.226191

Triangular Pyramid

Length = n
Surface area 1.9254021766002E+14
Volume 1.1050068885278E+21
Height 9940406.7207576