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

640438 (number)

640438 is an even 6-digits composite number following 640437 and preceding 640439. In scientific notation, it is written as 6.40438 × 10^5. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 320218 positive integers (up to 640438) that are relatively prime to 640438.

Interesting facts

640438 has 4 divisors, whose sum is 960660
The reverse of 640438 is 834046
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 four hundred thirty-eight

Notation

Scientific notation	6.40438 × 10^5
Engineering notation	6.40438 × 10^3

Prime Factorization of 640438

Prime Factorization 2 × 320219

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	640438	Product of the distinct prime numbers

The prime factorization of 640438 is 2 × 320219. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 62, 27, 404, 88, 7419, 3424, 94879, 40486, 839943, 178778, 4036128, 7413969, 71149843, 48452585, 625633918, 469878038, 9915715205, 8857094027

Basic calculations (n = 640438)

Multiplication

n×y

n×2	1280876
n×3	1921314
n×4	2561752
n×5	3202190

Division

n÷y

n÷2	320219
n÷3	213479.33333333
n÷3	160109.5
n÷5	128087.6

Exponentiation

n^y

n²	410160831844
n³	262682582824507672
n⁴	1.6823190797896E+23
n⁵	1.0774210668223E+29

Nth Root

^y√n

²√n	800.27370317911
³√n	86.197042334767
⁴√n	28.28910926804
⁵√n	14.497576814963

Divisors of 640438

1, 2, 320219, 640438

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	-640437	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 640438 can be divided by 4 positive divisors. The sum of these divisors (counting 640438) is 1, the average is 0.25.

Base conversion 640438

Base	System	Value
2	Binary	10011100010110110110
3	Ternary	1012112111221
4	Quaternary	2130112312
5	Quinary	130443223
6	Senary	21420554
8	Octal	2342666
10	Decimal	640438
12	Duodecimal	26a75a
16	Hexadecimal	9c5b6
20	Vigesimal	4011i
36	Base36	dq5y

Cryptographic Hash Functions

md5	23487f80b7c84dec77c9aa3e2b14b0d0
sha1	eea2f9a09db29fccc8a3a9f3425990682a0a66d8
sha256	622352aaa8088ea5fa6a1a850fd6b829d3ad6560f1446deec283a6a7227fcd3a
sha512	971249d42aa786165ffe053145eb59f42844c3592068f54468f3e337fb4674d22398d669855a805f2cee8fb17c4e48b0482fc859be0580dd0cdc1a0d5e90e347
ripemd-160	9e59f8ac89e00c885d2b8488868f9164357c9453

640438 as geometric shapes

Circle

Radius = n

Diameter	1280876
Circumference	4023990.6317595
Area	1288558256111.4

Sphere

Radius = n

Volume	1.1003222299033E+18
Surface area	5154233024445.6
Circumference	4023990.6317595

Square

Length = n

Perimeter	2561752
Area	410160831844
Diagonal	905716.1054591

Cube

Length = n

Surface area	2460964991064
Volume	262682582824507672
Space diagonal	1109271.1550978

Equilateral Triangle

Length = n

Perimeter	1921314
Area	177604850007.13
Altitude	554635.5775489

Triangular Pyramid

Length = n

Surface area	177604850007.13
Volume	3.0957439269134E+16
Height	301905.36848637