21087680 (number)

21087680 is an even 8-digits composite number following 21087679 and preceding 21087681. In scientific notation, it is written as 2.1087680 × 10^7. The sum of its digits is 32. It has a total of 8 prime factors and 28 positive divisors. There are 8434944 positive integers (up to 21087680) that are relatively prime to 21087680.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1087680 × 10^7
Engineering notation 2.1087680 × 10^6

Prime Factorization of 21087680

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 65899

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 658990
Product of the distinct prime numbers

The prime factorization of 21087680 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 65899. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 7, 47, 56, 342, 490, 632, 6119, 37722, 42002, 454778, 133108, 7780617, 7719283, 10276445, 13984525, 142287699, 562189481, 9614535622, 3893438918

Basic calculations (n = 21087680)

Multiplication

n×y
n×2 42175360
n×3 63263040
n×4 84350720
n×5 105438400

Division

n÷y
n÷2 10543840
n÷3 7029226.6666667
n÷3 5271920
n÷5 4217536

Exponentiation

ny
n2 444690247782400
n3 9.377485644356E+21
n4 1.9774941647277E+29
n5 4.1700764147646E+36

Nth Root

y√n
2√n 4592.1324022724
3√n 276.27585665992
4√n 67.765274309726
5√n 29.16122478048

Divisors of 21087680

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65899, 131798, 263596, 329495, 527192, 658990, 1054384, 1317980, 2108768, 2635960, 4217536, 5271920, 10543840, 21087680

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087679
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087680 can be divided by 28 positive divisors. The sum of these divisors (counting 21087680) is 1, the average is 0.035714285714286.

Base conversion 21087680

Base System Value
2 Binary 1010000011100010111000000
3 Ternary 1110200100212012
4 Quaternary 1100130113000
5 Quinary 20344301210
6 Senary 2031552052
8 Octal 120342700
10 Decimal 21087680
12 Duodecimal 708b628
16 Hexadecimal 141c5c0
20 Vigesimal 6bfj40
36 Base36 cjzcw

Cryptographic Hash Functions

md5 dc212eca2bf333faf0e3bff77e742ff4
sha1 ed6d2df4afcccf3e539c05cc2939bf033dfabd0e
sha256 2a95227fb88330eb31f6ed55c4d2cacd5781ab7572da925bcc954fbf20a0dd60
sha512 eb6840555d09528105a09b4ec6e041f27993a34fae39a01ea120327bba79175456658514ddb58c2465ef3e2f4e75ac1c3a03dd52596943a1d9eb556895650d4b
ripemd-160 9a356985d6ae45eea5196033037984d8fb0e9306

21087680 as geometric shapes

Circle

Radius = n
Diameter 42175360
Circumference 132497801.1385
Area 1.3970356155562E+15

Sphere

Radius = n
Volume 3.9280320012603E+22
Surface area 5.5881424622249E+15
Circumference 132497801.1385

Square

Length = n
Perimeter 84350720
Area 444690247782400
Diagonal 29822483.054984

Cube

Length = n
Surface area 2668141486694400
Volume 9.377485644356E+21
Space diagonal 36524933.173754

Equilateral Triangle

Length = n
Perimeter 63263040
Area 1.9255652569738E+14
Altitude 18262466.586877

Triangular Pyramid

Length = n
Surface area 1.9255652569738E+14
Volume 1.1051472816006E+21
Height 9940827.6849946