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

640939 (number)

640939 is an odd 6-digits composite number following 640938 and preceding 640940. In scientific notation, it is written as 6.40939 × 10^5. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 578496 positive integers (up to 640939) that are relatively prime to 640939.

Interesting facts

640939 has 8 divisors, whose sum is 705600
The reverse of 640939 is 939046
Previous prime number is 47

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 31
Digital Root 4

Name

Name	six hundred forty thousand nine hundred thirty-nine

Notation

Scientific notation	6.40939 × 10^5
Engineering notation	6.40939 × 10^3

Prime Factorization of 640939

Prime Factorization 13 × 47 × 1049

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	640939	Product of the distinct prime numbers

The prime factorization of 640939 is 13 × 47 × 1049. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 5, 89, 3, 357, 647, 7961, 2670, 34436, 9854, 115954, 849436, 5135089, 4973570, 75089725, 15923793, 618987689, 454786696, 2690698336, 1278323936

Basic calculations (n = 640939)

Multiplication

n×y

n×2	1281878
n×3	1922817
n×4	2563756
n×5	3204695

Division

n÷y

n÷2	320469.5
n÷3	213646.33333333
n÷3	160234.75
n÷5	128187.8

Exponentiation

n^y

n²	410802801721
n³	263299536932256019
n⁴	1.6875894190182E+23
n⁵	1.0816418746361E+29

Nth Root

^y√n

²√n	800.58665989386
³√n	86.219513134593
⁴√n	28.294640126601
⁵√n	14.499844330098

Divisors of 640939

1, 13, 47, 611, 1049, 13637, 49303, 640939

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	-640938	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 640939 can be divided by 8 positive divisors. The sum of these divisors (counting 640939) is 1, the average is 0.125.

Base conversion 640939

Base	System	Value
2	Binary	10011100011110101011
3	Ternary	1012120012111
4	Quaternary	2130132223
5	Quinary	131002224
6	Senary	21423151
8	Octal	2343653
10	Decimal	640939
12	Duodecimal	26aab7
16	Hexadecimal	9c7ab
20	Vigesimal	4026j
36	Base36	dqjv

Cryptographic Hash Functions

md5	1db02ebb29a6f8b5c096e010b6f0fad3
sha1	f7fcb7370b3b8cb2b48217fb8049d40e37e08d3c
sha256	fca5f1daa959a94005d68a2709e5c1c0dec12b82a0b2233f01f405f85bbf82f9
sha512	74e66ec8a8b21502571634e9fc650c36e49e1934ad3b0175fd9f99aa4a2c9145a8e80d9ace4bf28c127297eaebdb7b6fbb4b25bd3fa8233f53046610cfc029ab
ripemd-160	58dffa1d5e5355d785a6c8a6eb473f0c6f1a562d

640939 as geometric shapes

Circle

Radius = n

Diameter	1281878
Circumference	4027138.5075984
Area	1290575063960.8

Sphere

Radius = n

Volume	1.1029065212266E+18
Surface area	5162300255843.2
Circumference	4027138.5075984

Square

Length = n

Perimeter	2563756
Area	410802801721
Diagonal	906424.62645385

Cube

Length = n

Surface area	2464816810326
Volume	263299536932256019
Space diagonal	1110138.9125524

Equilateral Triangle

Length = n

Perimeter	1922817
Area	177882831118.1
Altitude	555069.45627619

Triangular Pyramid

Length = n

Surface area	177882831118.1
Volume	3.1030148008013E+16
Height	302141.54215128