821421690 (number)

821421690 is an even 9-digits composite number following 821421689 and preceding 821421691. In scientific notation, it is written as 8.21421690 × 10^8. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 213951360 positive integers (up to 821421690) that are relatively prime to 821421690.

Interesting facts

Basic properties

Name

Name eight hundred twenty-one million four hundred twenty-one thousand six hundred ninety

Notation

Scientific notation 8.21421690 × 10^8
Engineering notation 8.21421690 × 10^6

Prime Factorization of 821421690

Prime Factorization 2 × 43 × 15 × 636761

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 821421690
Product of the distinct prime numbers

The prime factorization of 821421690 is 2 × 43 × 15 × 636761. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 17, 71, 606, 427, 4805, 5049, 28642, 63834, 43443, 160739, 7588809, 1703824, 89399923, 57034445, 104841202, 228927055, 1136929072, 9368080603

Basic calculations (n = 821421690)

Multiplication

n×y
n×2 1642843380
n×3 2464265070
n×4 3285686760
n×5 4107108450

Division

n÷y
n÷2 410710845
n÷3 273807230
n÷3 205355422.5
n÷5 164284338

Exponentiation

ny
n2 674733592802456100
n3 5.5424080809957E+26
n4 4.5526542125611E+35
n5 3.7396489172676E+44

Nth Root

y√n
2√n 28660.455160377
3√n 936.530780021
4√n 169.29399032564
5√n 60.661512320837

Divisors of 821421690

1, 2, 15, 30, 43, 86, 645, 1290, 636761, 1273522, 9551415, 19102830, 27380723, 54761446, 410710845, 821421690

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -821421689
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 821421690 can be divided by 16 positive divisors. The sum of these divisors (counting 821421690) is 1, the average is 0.0625.

Base conversion 821421690

Base System Value
2 Binary 110000111101011110011001111010
3 Ternary 2010020122112201120
4 Quaternary 300331132121322
5 Quinary 3140240443230
6 Senary 213301530110
8 Octal 6075363172
10 Decimal 821421690
12 Duodecimal 1ab113936
16 Hexadecimal 30f5e67a
20 Vigesimal cgdhe4a
36 Base36 dl1x16

Cryptographic Hash Functions

md5 37d70bfcc4e8b2f92fde65d7af4f1eb8
sha1 b21886f6c912fd12efa4544c91e51926890b48bf
sha256 0c45326e2d2a0bbc9c2a9a5d291c56daeebbb5d8ba567d337b0be01f64be419a
sha512 5e8bcf4339eb1f19a9a913eda461741e09acc3f323f1d5bae39b8a4b5a847df9e57d0cb2724f76e9f23c6a887020e49cf5b5d578e5f023bd48deaace94d903c9
ripemd-160 aafdad2b9d200f01b7ef2e1ea83b3e1b666d0c7d

821421690 as geometric shapes

Circle

Radius = n
Diameter 1642843380
Circumference 5161144693.6066
Area 2.1197380982784E+18

Sphere

Radius = n
Volume 2.3215984680604E+27
Surface area 8.4789523931138E+18
Circumference 5161144693.6066

Square

Length = n
Perimeter 3285686760
Area 674733592802456100
Diagonal 1161665694.4254

Cube

Length = n
Surface area 4048401556814736600
Volume 5.5424080809957E+26
Space diagonal 1422744101.5191

Equilateral Triangle

Length = n
Perimeter 2464265070
Area 2.9216821607684E+17
Altitude 711372050.75955

Triangular Pyramid

Length = n
Surface area 2.9216821607684E+17
Volume 6.5317905636252E+25
Height 387221898.14181