642720 (number)

642720 is an even 6-digits composite number following 642719 and preceding 642721. In scientific notation, it is written as 6.42720 × 10^5. The sum of its digits is 21. It has a total of 7 prime factors and 24 positive divisors. There are 156672 positive integers (up to 642720) that are relatively prime to 642720.

Interesting facts

Basic properties

Name

Name six hundred forty-two thousand seven hundred twenty

Notation

Scientific notation 6.42720 × 10^5
Engineering notation 6.42720 × 10^3

Prime Factorization of 642720

Prime Factorization 2 × 2 × 2 × 2 × 2 × 1545 × 13

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 40170
Product of the distinct prime numbers

The prime factorization of 642720 is 2 × 2 × 2 × 2 × 2 × 1545 × 13. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 642720)

Multiplication

n×y
n×2 1285440
n×3 1928160
n×4 2570880
n×5 3213600

Division

n÷y
n÷2 321360
n÷3 214240
n÷3 160680
n÷5 128544

Exponentiation

ny
n2 413088998400
n3 265500561051648000
n4 1.7064252059912E+23
n5 1.0967536083946E+29

Nth Root

y√n
2√n 801.69819757812
3√n 86.29929968769
4√n 28.314275508621
5√n 14.507893634958

Divisors of 642720

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -642719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 642720 can be divided by 24 positive divisors. The sum of these divisors (counting 642720) is 1, the average is 0.041666666666667.

Base conversion 642720

Base System Value
2 Binary 10011100111010100000
3 Ternary 1012122122110
4 Quaternary 2130322200
5 Quinary 131031340
6 Senary 21435320
8 Octal 2347240
10 Decimal 642720
12 Duodecimal 26bb40
16 Hexadecimal 9cea0
20 Vigesimal 406g0
36 Base36 drxc

Cryptographic Hash Functions

md5 fdcf535d6c56d455ea1e2a544d2aed70
sha1 2a90fedb53e72cf82c7793b9db010047607b5616
sha256 420f9f77ff9f849516df67ee4e01d829ef18699024e605099cc6d7bed36556c1
sha512 997d734809151a6f53ef642ecc99b58984a1f55dee18123bd8dfc0b11a136b55d5d01fa21f7890fc72360eb743bd1709db58be2228e5561ce3c46ad6a273e7cc
ripemd-160 f2df15826b2023b63694bae62891a9e9f4abff8b

642720 as geometric shapes

Circle

Radius = n
Diameter 1285440
Circumference 4038328.8606305
Area 1297757362652.2

Sphere

Radius = n
Volume 1.1121261494984E+18
Surface area 5191029450608.8
Circumference 4038328.8606305

Square

Length = n
Perimeter 2570880
Area 413088998400
Diagonal 908943.34080844

Cube

Length = n
Surface area 2478533990400
Volume 265500561051648000
Space diagonal 1113223.6950407

Equilateral Triangle

Length = n
Perimeter 1928160
Area 178872783319.13
Altitude 556611.84752033

Triangular Pyramid

Length = n
Surface area 178872783319.13
Volume 3.1289541188076E+16
Height 302981.11360281