642079721 (number)

642079721 is an odd 9-digits composite number following 642079720 and preceding 642079722. In scientific notation, it is written as 6.42079721 × 10^8. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 625968000 positive integers (up to 642079721) that are relatively prime to 642079721.

Interesting facts

Basic properties

Name

Name six hundred forty-two million seventy-nine thousand seven hundred twenty-one

Notation

Scientific notation 6.42079721 × 10^8
Engineering notation 6.42079721 × 10^6

Prime Factorization of 642079721

Prime Factorization 41 × 1621 × 9661

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642079721
Product of the distinct prime numbers

The prime factorization of 642079721 is 41 × 1621 × 9661. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 7, 11, 65, 526, 835, 4811, 658, 39698, 54680, 278905, 363870, 8178850, 9424065, 81166877, 75298577, 777083612, 493482351, 3651836082, 6284854983

Basic calculations (n = 642079721)

Multiplication

n×y
n×2 1284159442
n×3 1926239163
n×4 2568318884
n×5 3210398605

Division

n÷y
n÷2 321039860.5
n÷3 214026573.66667
n÷3 160519930.25
n÷5 128415944.2

Exponentiation

ny
n2 412266368119437841
n3 2.6470787461981E+26
n4 1.6996355828239E+35
n5 1.0913015408213E+44

Nth Root

y√n
2√n 25339.292038256
3√n 862.70632985726
4√n 159.1832027516
5√n 57.745452747085

Divisors of 642079721

1, 41, 1621, 9661, 66461, 396101, 15660481, 642079721

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 -642079720
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 642079721 can be divided by 8 positive divisors. The sum of these divisors (counting 642079721) is 1, the average is 0.125.

Base conversion 642079721

Base System Value
2 Binary 100110010001010101101111101001
3 Ternary 1122202012000210102
4 Quaternary 212101111233221
5 Quinary 2303333022341
6 Senary 143413555145
8 Octal 4621255751
10 Decimal 642079721
12 Duodecimal 15b045ab5
16 Hexadecimal 26455be9
20 Vigesimal a0cjj61
36 Base36 am9zvt

Cryptographic Hash Functions

md5 35cb3b60262faf49409c01fa9796b923
sha1 5427ff668088e40a7a0805a88526886945ef2500
sha256 618548829f1ef8ccea544b988acaff803dc8a0de8c17e8ccc30d2a79679cda61
sha512 bc12cd5715e17c0c0c977b343680c8baa3568315987c5e11afb5b6237d069c06fd8fdcf90c29bb7719d193c6fda560de26e751202621aad1164a53c7a35254a9
ripemd-160 891e60c45fcf259181c6f71233ff805642bb1aa7

642079721 as geometric shapes

Circle

Radius = n
Diameter 1284159442
Circumference 4034305869.0252
Area 1.2951729934062E+18

Sphere

Radius = n
Volume 1.1088057523373E+27
Surface area 5.1806919736247E+18
Circumference 4034305869.0252

Square

Length = n
Perimeter 2568318884
Area 412266368119437841
Diagonal 908037849.56293

Cube

Length = n
Surface area 2473598208716627046
Volume 2.6470787461981E+26
Space diagonal 1112114699.2816

Equilateral Triangle

Length = n
Perimeter 1926239163
Area 1.7851657395869E+17
Altitude 556057349.64082

Triangular Pyramid

Length = n
Surface area 1.7851657395869E+17
Volume 3.1196122196191E+25
Height 302679283.18764