21087079 (number)

21087079 is an odd 8-digits composite number following 21087078 and preceding 21087080. In scientific notation, it is written as 2.1087079 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 18989760 positive integers (up to 21087079) that are relatively prime to 21087079.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand seventy-nine

Notation

Scientific notation 2.1087079 × 10^7
Engineering notation 2.1087079 × 10^6

Prime Factorization of 21087079

Prime Factorization 13 × 41 × 39563

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21087079
Product of the distinct prime numbers

The prime factorization of 21087079 is 13 × 41 × 39563. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 90, 77, 355, 957, 4313, 1692, 27001, 40372, 534944, 766348, 4622203, 9762445, 47919545, 78297852, 256170365, 23527468, 5901840449, 1242503992

Basic calculations (n = 21087079)

Multiplication

n×y
n×2 42174158
n×3 63261237
n×4 84348316
n×5 105435395

Division

n÷y
n÷2 10543539.5
n÷3 7029026.3333333
n÷3 5271769.75
n÷5 4217415.8

Exponentiation

ny
n2 444664900752241
n3 9.3766838906897E+21
n4 1.97726873961E+29
n5 4.1694822116387E+36

Nth Root

y√n
2√n 4592.0669637975
3√n 276.27323200945
4√n 67.764791476086
5√n 29.161058559294

Divisors of 21087079

1, 13, 41, 533, 39563, 514319, 1622083, 21087079

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 -21087078
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 21087079 can be divided by 8 positive divisors. The sum of these divisors (counting 21087079) is 1, the average is 0.125.

Base conversion 21087079

Base System Value
2 Binary 1010000011100001101100111
3 Ternary 1110200100000221
4 Quaternary 1100130031213
5 Quinary 20344241304
6 Senary 2031545211
8 Octal 120341547
10 Decimal 21087079
12 Duodecimal 708b207
16 Hexadecimal 141c367
20 Vigesimal 6bfhdj
36 Base36 cjyw7

Cryptographic Hash Functions

md5 649c5d51809297c3e4cb694c2750ed4d
sha1 51a6294c8c4a065d1bb0402b1f1d7d60a9fe39f9
sha256 992b40e35b8977e149f421716ad0930ecb73760135bf0fb3d5b65daf50c92070
sha512 40db1b4d01f775998a26e0b4ac04fc19f6ee70e1aeed51e0afd5f52e805b81eb71bd72f49f8f411de80d89758c343f6470a4f2873c0a19a42e2af7d244e740d7
ripemd-160 84965ffdebd6d30cc2a046ff63c14c6cc379a166

21087079 as geometric shapes

Circle

Radius = n
Diameter 42174158
Circumference 132494024.94414
Area 1.3969559855125E+15

Sphere

Radius = n
Volume 3.9276961634699E+22
Surface area 5.5878239420499E+15
Circumference 132494024.94414

Square

Length = n
Perimeter 84348316
Area 444664900752241
Diagonal 29821633.112633

Cube

Length = n
Surface area 2667989404513446
Volume 9.3766838906897E+21
Space diagonal 36523892.211219

Equilateral Triangle

Length = n
Perimeter 63261237
Area 1.9254555011136E+14
Altitude 18261946.105609

Triangular Pyramid

Length = n
Surface area 1.9254555011136E+14
Volume 1.1050527940249E+21
Height 9940544.3708776