21001806 (number)

21001806 is an even 8-digits composite number following 21001805 and preceding 21001807. In scientific notation, it is written as 2.1001806 × 10^7. The sum of its digits is 18. It has a total of 5 prime factors and 32 positive divisors. There are 5738832 positive integers (up to 21001806) that are relatively prime to 21001806.

Interesting facts

Basic properties

Name

Name twenty-one million one thousand eight hundred six

Notation

Scientific notation 2.1001806 × 10^7
Engineering notation 2.1001806 × 10^6

Prime Factorization of 21001806

Prime Factorization 2 × 7 × 69 × 3 × 7247

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21001806
Product of the distinct prime numbers

The prime factorization of 21001806 is 2 × 7 × 69 × 3 × 7247. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 8, 20, 39, 643, 20, 2515, 4680, 68303, 73415, 183178, 18197, 7248180, 1826155, 22996464, 7943797, 658106592, 120407726, 9897471020, 3236272690

Basic calculations (n = 21001806)

Multiplication

n×y
n×2 42003612
n×3 63005418
n×4 84007224
n×5 105009030

Division

n÷y
n÷2 10500903
n÷3 7000602
n÷3 5250451.5
n÷5 4200361.2

Exponentiation

ny
n2 441075855261636
n3 9.263389543489E+21
n4 1.9454791009478E+29
n5 4.0858574655161E+36

Nth Root

y√n
2√n 4582.7727414743
3√n 275.90032632737
4√n 67.69617966676
5√n 29.137435723798

Divisors of 21001806

1, 2, 3, 6, 7, 14, 21, 42, 69, 138, 207, 414, 483, 966, 1449, 2898, 7247, 14494, 21741, 43482, 50729, 101458, 152187, 304374, 500043, 1000086, 1500129, 3000258, 3500301, 7000602, 10500903, 21001806

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21001805
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21001806 can be divided by 32 positive divisors. The sum of these divisors (counting 21001806) is 1, the average is 0.03125.

Base conversion 21001806

Base System Value
2 Binary 1010000000111011001001110
3 Ternary 1110112000001200
4 Quaternary 1100013121032
5 Quinary 20334024211
6 Senary 2030050330
8 Octal 120073116
10 Decimal 21001806
12 Duodecimal 70499a6
16 Hexadecimal 140764e
20 Vigesimal 6b54a6
36 Base36 ci53i

Cryptographic Hash Functions

md5 dad38ce842f5f2d4948b1d88fd42563d
sha1 f5450e5d53d78f76964ae3dd71d5b7a8fbb0ecac
sha256 688ce7249fa3d629375ca5b8de6372394bcf5e70bf8feda547fad0147bbfaadc
sha512 67cd2ff99c9994ec209c5e355ea2b15e288774a532f12153bf916c4202dada4091f55a4c362fde5ee9667d95fd9028e1eff9076c09b9cdadf055ec072c859b43
ripemd-160 f04d648f4c84821a234c7864fa957d18c26cf1a7

21001806 as geometric shapes

Circle

Radius = n
Diameter 42003612
Circumference 131958238.88344
Area 1.3856806665658E+15

Sphere

Radius = n
Volume 3.8802395382887E+22
Surface area 5.5427226662632E+15
Circumference 131958238.88344

Square

Length = n
Perimeter 84007224
Area 441075855261636
Diagonal 29701038.879529

Cube

Length = n
Surface area 2646455131569816
Volume 9.263389543489E+21
Space diagonal 36376195.042705

Equilateral Triangle

Length = n
Perimeter 63005418
Area 1.9099144782626E+14
Altitude 18188097.521352

Triangular Pyramid

Length = n
Surface area 1.9099144782626E+14
Volume 1.0917009271623E+21
Height 9900346.2931762