642731 (number)

642731 is an odd 6-digits composite number following 642730 and preceding 642732. In scientific notation, it is written as 6.42731 × 10^5. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 617760 positive integers (up to 642731) that are relatively prime to 642731.

Interesting facts

Basic properties

Name

Name six hundred forty-two thousand seven hundred thirty-one

Notation

Scientific notation 6.42731 × 10^5
Engineering notation 6.42731 × 10^3

Prime Factorization of 642731

Prime Factorization 53 × 67 × 181

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642731
Product of the distinct prime numbers

The prime factorization of 642731 is 53 × 67 × 181. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 642731)

Multiplication

n×y
n×2 1285462
n×3 1928193
n×4 2570924
n×5 3213655

Division

n÷y
n÷2 321365.5
n÷3 214243.66666667
n÷3 160682.75
n÷5 128546.2

Exponentiation

ny
n2 413103138361
n3 265514193221903891
n4 1.7065420292371E+23
n5 1.0968474649936E+29

Nth Root

y√n
2√n 801.70505798579
3√n 86.299792015547
4√n 28.314396655867
5√n 14.507943294449

Divisors of 642731

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -642730
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 642731 can be divided by 8 positive divisors. The sum of these divisors (counting 642731) is 1, the average is 0.125.

Base conversion 642731

Base System Value
2 Binary 10011100111010101011
3 Ternary 1012122122212
4 Quaternary 2130322223
5 Quinary 131031411
6 Senary 21435335
8 Octal 2347253
10 Decimal 642731
12 Duodecimal 26bb4b
16 Hexadecimal 9ceab
20 Vigesimal 406gb
36 Base36 drxn

Cryptographic Hash Functions

md5 31c625d9260a1d41c85b5cf9c43c040b
sha1 031430dc518164c6d1cb405740f96f9385674ba0
sha256 3c75a9404e534405676181fba526a728c0a81d47c37603cb46f0fce2a6797884
sha512 166c910ee048580d28a12cd579d888b36631bfcdb0f7a7a49997e16ac42cec515648c3a748483971189c0566d71075a52dbfd3994c225233047b5ddef5535039
ripemd-160 c64bf8657d8f86dcd0310e3fd6f45b09786c0a33

642731 as geometric shapes

Circle

Radius = n
Diameter 1285462
Circumference 4038397.9756688
Area 1297801784649.8

Sphere

Radius = n
Volume 1.1121832517997E+18
Surface area 5191207138599.2
Circumference 4038397.9756688

Square

Length = n
Perimeter 2570924
Area 413103138361
Diagonal 908958.89715762

Cube

Length = n
Surface area 2478618830166
Volume 265514193221903891
Space diagonal 1113242.7475996

Equilateral Triangle

Length = n
Perimeter 1928193
Area 178878906101.85
Altitude 556621.37379978

Triangular Pyramid

Length = n
Surface area 178878906101.85
Volume 3.1291147754747E+16
Height 302986.29905254