821640197 (number)

821640197 is an odd 9-digits composite number following 821640196 and preceding 821640198. In scientific notation, it is written as 8.21640197 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 704263020 positive integers (up to 821640197) that are relatively prime to 821640197.

Interesting facts

Basic properties

Name

Name eight hundred twenty-one million six hundred forty thousand one hundred ninety-seven

Notation

Scientific notation 8.21640197 × 10^8
Engineering notation 8.21640197 × 10^6

Prime Factorization of 821640197

Prime Factorization 7 × 117377171

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 821640197
Product of the distinct prime numbers

The prime factorization of 821640197 is 7 × 117377171. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 9, 45, 13, 762, 302, 4888, 1123, 16780, 43014, 17241, 264117, 9203188, 9565020, 16932156, 10995818, 33416160, 715680250, 8702075353, 2902562789

Basic calculations (n = 821640197)

Multiplication

n×y
n×2 1643280394
n×3 2464920591
n×4 3286560788
n×5 4108200985

Division

n÷y
n÷2 410820098.5
n÷3 273880065.66667
n÷3 205410049.25
n÷5 164328039.4

Exponentiation

ny
n2 675092613326198809
n3 5.5468322780658E+26
n4 4.557500365676E+35
n5 3.7446254982816E+44

Nth Root

y√n
2√n 28664.266901493
3√n 936.61381507716
4√n 169.30524770807
5√n 60.664739300371

Divisors of 821640197

1, 7, 117377171, 821640197

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 -821640196
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 821640197 can be divided by 4 positive divisors. The sum of these divisors (counting 821640197) is 1, the average is 0.25.

Base conversion 821640197

Base System Value
2 Binary 110000111110010011110000000101
3 Ternary 2010021001122110102
4 Quaternary 300332103300011
5 Quinary 3140314441242
6 Senary 213310333445
8 Octal 6076236005
10 Decimal 821640197
12 Duodecimal 1ab1ba285
16 Hexadecimal 30f93c05
20 Vigesimal cgf509h
36 Base36 dl6lmt

Cryptographic Hash Functions

md5 393bf0785a1abc42c548d81f872c8dc9
sha1 0b8acdc28ddfec8343033f0028ed80244c4df9b5
sha256 dda63179f5623715d9d450276b110a8f0c690d9cfea6cd4d3707d348d63be80e
sha512 dcef6a3d3f3ecace1370f597b08c0ba580a4d7ac2018933b0d2bf768298286676ac3942aec9f7589fe87edd9d576c331be0ed176b156b525bab4d0504084bf2c
ripemd-160 e146d93273f6c36e2593bea09f5b64e5a3c399cf

821640197 as geometric shapes

Circle

Radius = n
Diameter 1643280394
Circumference 5162517613.5785
Area 2.1208659945183E+18

Sphere

Radius = n
Volume 2.3234516713955E+27
Surface area 8.4834639780733E+18
Circumference 5162517613.5785

Square

Length = n
Perimeter 3286560788
Area 675092613326198809
Diagonal 1161974709.9883

Cube

Length = n
Surface area 4050555679957192854
Volume 5.5468322780658E+26
Space diagonal 1423122566.7449

Equilateral Triangle

Length = n
Perimeter 2464920591
Area 2.9232367652386E+17
Altitude 711561283.37245

Triangular Pyramid

Length = n
Surface area 2.9232367652386E+17
Volume 6.5370045298746E+25
Height 387324903.32943