821428091 (number)

821428091 is an odd 9-digits composite number following 821428090 and preceding 821428092. In scientific notation, it is written as 8.21428091 × 10^8. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 746752800 positive integers (up to 821428091) that are relatively prime to 821428091.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.21428091 × 10^8
Engineering notation 8.21428091 × 10^6

Prime Factorization of 821428091

Prime Factorization 11 × 74675281

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 821428091
Product of the distinct prime numbers

The prime factorization of 821428091 is 11 × 74675281. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 6, 100, 15, 415, 802, 3741, 4486, 68328, 31572, 686432, 726916, 1898874, 1633618, 39314928, 25563401, 471686334, 437073694, 1186711382, 784128121

Basic calculations (n = 821428091)

Multiplication

n×y
n×2 1642856182
n×3 2464284273
n×4 3285712364
n×5 4107140455

Division

n÷y
n÷2 410714045.5
n÷3 273809363.66667
n÷3 205357022.75
n÷5 164285618.2

Exponentiation

ny
n2 674744108683904281
n3 5.5425376510972E+26
n4 4.5527961220364E+35
n5 3.7397946272365E+44

Nth Root

y√n
2√n 28660.566829705
3√n 936.53321268055
4√n 169.29432013421
5√n 60.661606862565

Divisors of 821428091

1, 11, 74675281, 821428091

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -821428090
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 821428091 can be divided by 4 positive divisors. The sum of these divisors (counting 821428091) is 1, the average is 0.25.

Base conversion 821428091

Base System Value
2 Binary 110000111101011111111101111011
3 Ternary 2010020122212111122
4 Quaternary 300331133331323
5 Quinary 3140241144331
6 Senary 213302015455
8 Octal 6075377573
10 Decimal 821428091
12 Duodecimal 1ab11758b
16 Hexadecimal 30f5ff7b
20 Vigesimal cgdia4b
36 Base36 dl21yz

Cryptographic Hash Functions

md5 47633b1d85ce832c6af20338afe0d65a
sha1 98c608b240255b5d80fe256fbcf8ac5b57fc49f0
sha256 2e7f0d794656997f74d7b418640055b7a961a49ce2a1e2db67f9bdcc865fc8cc
sha512 d82f64e2dc4895240e07131ed05f66bd4cd8a10085f78a691195b02e28f04bc5b3e00747125975133b90fc1cc9a28f5e8f9d0ab58abc53adc945dd9959041c14
ripemd-160 f087c283d188e846d50d15321941ef1e5dca0d8e

821428091 as geometric shapes

Circle

Radius = n
Diameter 1642856182
Circumference 5161184912.2758
Area 2.1197711348943E+18

Sphere

Radius = n
Volume 2.3216527422576E+27
Surface area 8.4790845395774E+18
Circumference 5161184912.2758

Square

Length = n
Perimeter 3285712364
Area 674744108683904281
Diagonal 1161674746.8064

Cube

Length = n
Surface area 4048464652103425686
Volume 5.5425376510972E+26
Space diagonal 1422755188.3763

Equilateral Triangle

Length = n
Perimeter 2464284273
Area 2.9217276958707E+17
Altitude 711377594.18816

Triangular Pyramid

Length = n
Surface area 2.9217276958707E+17
Volume 6.5319432634543E+25
Height 387224915.60215