21087517 (number)

21087517 is an odd 8-digits composite number following 21087516 and preceding 21087518. In scientific notation, it is written as 2.1087517 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors. There are 18849600 positive integers (up to 21087517) that are relatively prime to 21087517.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand five hundred seventeen

Notation

Scientific notation 2.1087517 × 10^7
Engineering notation 2.1087517 × 10^6

Prime Factorization of 21087517

Prime Factorization 11 × 11 × 61 × 2857

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1917047
Product of the distinct prime numbers

The prime factorization of 21087517 is 11 × 11 × 61 × 2857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 2, 11, 60, 923, 416, 6183, 1329, 51404, 71289, 161254, 713059, 7287525, 3543430, 10218055, 49716305, 278880371, 746568077, 7301897741, 7099400510

Basic calculations (n = 21087517)

Multiplication

n×y
n×2 42175034
n×3 63262551
n×4 84350068
n×5 105437585

Division

n÷y
n÷2 10543758.5
n÷3 7029172.3333333
n÷3 5271879.25
n÷5 4217503.4

Exponentiation

ny
n2 444683373225289
n3 9.3772681925056E+21
n4 1.9774330242302E+29
n5 4.1699152514816E+36

Nth Root

y√n
2√n 4592.114654492
3√n 276.27514482121
4√n 67.765143359193
5√n 29.161179699235

Divisors of 21087517

1, 11, 61, 121, 671, 2857, 7381, 31427, 174277, 345697, 1917047, 21087517

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087516
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087517 can be divided by 12 positive divisors. The sum of these divisors (counting 21087517) is 1, the average is 0.083333333333333.

Base conversion 21087517

Base System Value
2 Binary 1010000011100010100011101
3 Ternary 1110200100122011
4 Quaternary 1100130110131
5 Quinary 20344300032
6 Senary 2031551221
8 Octal 120342435
10 Decimal 21087517
12 Duodecimal 708b511
16 Hexadecimal 141c51d
20 Vigesimal 6bfifh
36 Base36 cjz8d

Cryptographic Hash Functions

md5 7c8a7ea88c173d9ff2e5c2ca931843d2
sha1 066babf31c6361c29f63c902d29c974c4ff17668
sha256 8be9756191a233ef32f485cf7338263f10530eb25491211aca637839d23297c6
sha512 8f66f255c2f9b413e6cbc902fbae27424c16683afb716ce8c1767fdbd7c4c48786b3a486fe8f221bbc1e3785789eda9194298b08f2ecd5d59cc2c48ddb8a69f0
ripemd-160 d62c566270746a9046aab20b747d98de3b391de6

21087517 as geometric shapes

Circle

Radius = n
Diameter 42175034
Circumference 132496776.9793
Area 1.3970140184981E+15

Sphere

Radius = n
Volume 3.9279409152423E+22
Surface area 5.5880560739924E+15
Circumference 132496776.9793

Square

Length = n
Perimeter 84350068
Area 444683373225289
Diagonal 29822252.538173

Cube

Length = n
Surface area 2668100239351734
Volume 9.3772681925056E+21
Space diagonal 36524650.849472

Equilateral Triangle

Length = n
Perimeter 63262551
Area 1.9255354892683E+14
Altitude 18262325.424736

Triangular Pyramid

Length = n
Surface area 1.9255354892683E+14
Volume 1.1051216546543E+21
Height 9940750.8460577