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

639745 (number)

639745 is an odd 6-digits composite number following 639744 and preceding 639746. In scientific notation, it is written as 6.39745 × 10^5. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 489456 positive integers (up to 639745) that are relatively prime to 639745.

Interesting facts

639745 has 8 divisors, whose sum is 801216
The reverse of 639745 is 547936
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 34
Digital Root 7

Name

Name	six hundred thirty-nine thousand seven hundred forty-five

Notation

Scientific notation	6.39745 × 10^5
Engineering notation	6.39745 × 10^3

Prime Factorization of 639745

Prime Factorization 5 × 23 × 5563

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	639745	Product of the distinct prime numbers

The prime factorization of 639745 is 5 × 23 × 5563. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 2, 59, 647, 492, 2004, 7625, 1936, 87117, 245210, 808493, 2174029, 1663615, 53553333, 36112039, 521606230, 290602194, 9110746242, 4119265284

Basic calculations (n = 639745)

Multiplication

n×y

n×2	1279490
n×3	1919235
n×4	2558980
n×5	3198725

Division

n÷y

n÷2	319872.5
n÷3	213248.33333333
n÷3	159936.25
n÷5	127949

Exponentiation

n^y

n²	409273665025
n³	261830780831418625
n⁴	1.67504932883E+23
n⁵	1.0716044328723E+29

Nth Root

^y√n

²√n	799.84060912159
³√n	86.165940646551
⁴√n	28.281453447827
⁵√n	14.494437971824

Divisors of 639745

1, 5, 23, 115, 5563, 27815, 127949, 639745

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	-639744	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 639745 can be divided by 8 positive divisors. The sum of these divisors (counting 639745) is 1, the average is 0.125.

Base conversion 639745

Base	System	Value
2	Binary	10011100001100000001
3	Ternary	1012111120021
4	Quaternary	2130030001
5	Quinary	130432440
6	Senary	21413441
8	Octal	2341401
10	Decimal	639745
12	Duodecimal	26a281
16	Hexadecimal	9c301
20	Vigesimal	3jj75
36	Base36	dpmp

Cryptographic Hash Functions

md5	0b27331e03404f2474eb8a47f4bcfa90
sha1	d5c6c74f438bdf44cc38828ff48acced2fab1148
sha256	6bf1563ae0e2b4b29f04a4b3a7bd528bdb26113ca68227798d59ece449aa0063
sha512	139da09f7dd06e679012b851eb0e0dfb9d1e7b66cf8192015b0f8525e6628cb052af6eb5f06b0f2e2e0d4f7f03fa3201e08867129d58245390e0c1351c2ad27b
ripemd-160	d0c97d283cc9a6a4a1054ac0d621f4488e5436d3

639745 as geometric shapes

Circle

Radius = n

Diameter	1279490
Circumference	4019636.3843416
Area	1285771139350.3

Sphere

Radius = n

Volume	1.0967542100582E+18
Surface area	5143084557401.2
Circumference	4019636.3843416

Square

Length = n

Perimeter	2558980
Area	409273665025
Diagonal	904736.05546038

Cube

Length = n

Surface area	2455641990150
Volume	261830780831418625
Space diagonal	1108070.8438882

Equilateral Triangle

Length = n

Perimeter	1919235
Area	177220695505.81
Altitude	554035.42194408

Triangular Pyramid

Length = n

Surface area	177220695505.81
Volume	3.0857053441544E+16
Height	301578.68515346