821415985 (number)

821415985 is an odd 9-digits composite number following 821415984 and preceding 821415986. In scientific notation, it is written as 8.21415985 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 605880000 positive integers (up to 821415985) that are relatively prime to 821415985.

Interesting facts

Basic properties

Name

Name eight hundred twenty-one million four hundred fifteen thousand nine hundred eighty-five

Notation

Scientific notation 8.21415985 × 10^8
Engineering notation 8.21415985 × 10^6

Prime Factorization of 821415985

Prime Factorization 5 × 13 × 919 × 13751

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 821415985
Product of the distinct prime numbers

The prime factorization of 821415985 is 5 × 13 × 919 × 13751. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 40, 43, 770, 200, 8878, 5244, 19543, 43945, 544944, 838966, 7846134, 9356107, 20683285, 95067658, 767364611, 605064042, 7978055243, 9827896154

Basic calculations (n = 821415985)

Multiplication

n×y
n×2 1642831970
n×3 2464247955
n×4 3285663940
n×5 4107079925

Division

n÷y
n÷2 410707992.5
n÷3 273805328.33333
n÷3 205353996.25
n÷5 164283197

Exponentiation

ny
n2 674724220413520225
n3 5.5422926011433E+26
n4 4.5525277361263E+35
n5 3.73951905461E+44

Nth Root

y√n
2√n 28660.355632825
3√n 936.5286118612
4√n 169.29369637652
5√n 60.661428058419

Divisors of 821415985

1, 5, 13, 65, 919, 4595, 11947, 13751, 59735, 68755, 178763, 893815, 12637169, 63185845, 164283197, 821415985

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 -821415984
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 821415985 can be divided by 16 positive divisors. The sum of these divisors (counting 821415985) is 1, the average is 0.0625.

Base conversion 821415985

Base System Value
2 Binary 110000111101011101000000110001
3 Ternary 2010020122020220021
4 Quaternary 300331131000301
5 Quinary 3140240302420
6 Senary 213301443441
8 Octal 6075350061
10 Decimal 821415985
12 Duodecimal 1ab110581
16 Hexadecimal 30f5d031
20 Vigesimal cgdgjj5
36 Base36 dl1smp

Cryptographic Hash Functions

md5 588e3512c20522c1bd9f086c7e65f989
sha1 d369f430c23cad7bfe8136d6fccfc5bef2fb6abf
sha256 71ce36c660c0d26c97ce4a97a54ff96657ab9e41628542c94c8a73bf5f894e9b
sha512 dc8bb70bf74973cdafb1dee62b01f521b5e5756c4d2bbdc308d966731a7a2ac1d233ad264fc7e27b090d5c4c7be522187e163f98842548adf1cd422126fa73e9
ripemd-160 a276febb32a5262312f488de8672f5fcc020fb43

821415985 as geometric shapes

Circle

Radius = n
Diameter 1642831970
Circumference 5161108848.0344
Area 2.1197086540502E+18

Sphere

Radius = n
Volume 2.3215500959729E+27
Surface area 8.4788346162009E+18
Circumference 5161108848.0344

Square

Length = n
Perimeter 3285663940
Area 674724220413520225
Diagonal 1161657626.3371

Cube

Length = n
Surface area 4048345322481121350
Volume 5.5422926011433E+26
Space diagonal 1422734220.1692

Equilateral Triangle

Length = n
Perimeter 2464247955
Area 2.9216415771338E+17
Altitude 711367110.08462

Triangular Pyramid

Length = n
Surface area 2.9216415771338E+17
Volume 6.5316544693141E+25
Height 387219208.77902