20921810 (number)

20921810 is an even 8-digits composite number following 20921809 and preceding 20921811. In scientific notation, it is written as 2.0921810 × 10^7. The sum of its digits is 23. It has a total of 5 prime factors and 32 positive divisors. There are 6518016 positive integers (up to 20921810) that are relatively prime to 20921810.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand eight hundred ten

Notation

Scientific notation 2.0921810 × 10^7
Engineering notation 2.0921810 × 10^6

Prime Factorization of 20921810

Prime Factorization 2 × 35 × 13 × 83 × 277

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20921810
Product of the distinct prime numbers

The prime factorization of 20921810 is 2 × 35 × 13 × 83 × 277. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 8, 10, 10, 317, 9179, 1836, 38049, 43437, 784400, 401795, 9790896, 3525333, 262649, 80388644, 703460637, 71329810, 1238828915, 5139637987

Basic calculations (n = 20921810)

Multiplication

n×y
n×2 41843620
n×3 62765430
n×4 83687240
n×5 104609050

Division

n÷y
n÷2 10460905
n÷3 6973936.6666667
n÷3 5230452.5
n÷5 4184362

Exponentiation

ny
n2 437722133676100
n3 9.157939313566E+21
n4 1.9160066630996E+29
n5 4.0086327364103E+36

Nth Root

y√n
2√n 4574.036510567
3√n 275.5495786391
4√n 67.631623598484
5√n 29.11520489491

Divisors of 20921810

1, 2, 13, 26, 35, 70, 83, 166, 277, 455, 554, 910, 1079, 2158, 2905, 3601, 5810, 7202, 9695, 19390, 22991, 37765, 45982, 75530, 126035, 252070, 298883, 597766, 804685, 1609370, 10460905, 20921810

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 -20921809
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 20921810 can be divided by 32 positive divisors. The sum of these divisors (counting 20921810) is 1, the average is 0.03125.

Base conversion 20921810

Base System Value
2 Binary 1001111110011110111010010
3 Ternary 1110100221022212
4 Quaternary 1033303313102
5 Quinary 20323444220
6 Senary 2024232122
8 Octal 117636722
10 Decimal 20921810
12 Duodecimal 700b642
16 Hexadecimal 13f3dd2
20 Vigesimal 6af4aa
36 Base36 cgfde

Cryptographic Hash Functions

md5 8b1e9b64b5d2ed76aae06d1de551a445
sha1 2440c3a5d86b95a32676f260c94bc79a861c99e1
sha256 6c879ecdce51bd38b7396413870197001cc6e0763a9a13b9b552309ab3c1c916
sha512 3a79e2d870e2f9ab4e5dd93816e2a61d158ed5060429ae23726a2414db38a8a461391830534eb0605f4b1b396b8f6569534c992ac24328fb0c78940ea0a21994
ripemd-160 36fcc0f46ff347d25dcc8d9afae3d65a3199ae34

20921810 as geometric shapes

Circle

Radius = n
Diameter 41843620
Circumference 131455609.1916
Area 1.3751446394705E+15

Sphere

Radius = n
Volume 3.8360686492693E+22
Surface area 5.5005785578819E+15
Circumference 131455609.1916

Square

Length = n
Perimeter 83687240
Area 437722133676100
Diagonal 29587907.451393

Cube

Length = n
Surface area 2626332802056600
Volume 9.157939313566E+21
Space diagonal 36237637.906303

Equilateral Triangle

Length = n
Perimeter 62765430
Area 1.8953924378112E+14
Altitude 18118818.953151

Triangular Pyramid

Length = n
Surface area 1.8953924378112E+14
Volume 1.0792734983862E+21
Height 9862635.817131