Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

640942 (number)

640942 is an even 6-digits composite number following 640941 and preceding 640943. In scientific notation, it is written as 6.40942 × 10^5. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 320470 positive integers (up to 640942) that are relatively prime to 640942.

Interesting facts

640942 has 4 divisors, whose sum is 961416
The reverse of 640942 is 249046
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7

Name

Name	six hundred forty thousand nine hundred forty-two

Notation

Scientific notation	6.40942 × 10^5
Engineering notation	6.40942 × 10^3

Prime Factorization of 640942

Prime Factorization 2 × 320471

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	640942	Product of the distinct prime numbers

The prime factorization of 640942 is 2 × 320471. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 3, 25, 64, 13, 899, 3642, 6950, 49874, 50723, 168449, 350503, 1811694, 7322179, 20616304, 90645621, 24940235, 858320135, 2070200861, 323136809

Basic calculations (n = 640942)

Multiplication

n×y

n×2	1281884
n×3	1922826
n×4	2563768
n×5	3204710

Division

n÷y

n÷2	320471
n÷3	213647.33333333
n÷3	160235.5
n÷5	128188.4

Exponentiation

n^y

n²	410806647364
n³	263303234174776888
n⁴	1.6876210151845E+23
n⁵	1.0816671887144E+29

Nth Root

^y√n

²√n	800.58853351769
³√n	86.219647655005
⁴√n	28.294673235747
⁵√n	14.499857903761

Divisors of 640942

1, 2, 320471, 640942

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	-640941	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 640942 can be divided by 4 positive divisors. The sum of these divisors (counting 640942) is 1, the average is 0.25.

Base conversion 640942

Base	System	Value
2	Binary	10011100011110101110
3	Ternary	1012120012121
4	Quaternary	2130132232
5	Quinary	131002232
6	Senary	21423154
8	Octal	2343656
10	Decimal	640942
12	Duodecimal	26aaba
16	Hexadecimal	9c7ae
20	Vigesimal	40272
36	Base36	dqjy

Cryptographic Hash Functions

md5	7c81c16f4767f47af8a3f41383618679
sha1	daccf2369b663ce18ca7df207d190557c101cfff
sha256	aa1f823fc851aff6d72d94c74e5c25343b89398ed7826917685816b8a152092b
sha512	e9219b144c15e8370a48b25f84ebac063602c507341927d07cf83b7933af96edf2ac72efbf0080398813c6159df81cee9f69e315fe520dc7f57237254e3d03d6
ripemd-160	49f1d56e4b80c1e7f99206adaf48908196001b5c

640942 as geometric shapes

Circle

Radius = n

Diameter	1281884
Circumference	4027157.3571543
Area	1290587145404.6

Sphere

Radius = n

Volume	1.1029220081999E+18
Surface area	5162348581618.4
Circumference	4027157.3571543

Square

Length = n

Perimeter	2563768
Area	410806647364
Diagonal	906428.86909454

Cube

Length = n

Surface area	2464839884184
Volume	263303234174776888
Space diagonal	1110144.1087048

Equilateral Triangle

Length = n

Perimeter	1922826
Area	177884496330.37
Altitude	555072.05435241

Triangular Pyramid

Length = n

Surface area	177884496330.37
Volume	3.1030583732222E+16
Height	302142.95636485