640438690 (number)

640438690 is an even 9-digits composite number following 640438689 and preceding 640438691. In scientific notation, it is written as 6.40438690 × 10^8. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 255355776 positive integers (up to 640438690) that are relatively prime to 640438690.

Interesting facts

Basic properties

Name

Name six hundred forty million four hundred thirty-eight thousand six hundred ninety

Notation

Scientific notation 6.40438690 × 10^8
Engineering notation 6.40438690 × 10^6

Prime Factorization of 640438690

Prime Factorization 2 × 5 × 313 × 204613

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 640438690
Product of the distinct prime numbers

The prime factorization of 640438690 is 2 × 5 × 313 × 204613. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 26, 26, 201, 392, 5912, 6600, 78287, 19690, 770104, 281111, 5683906, 943408, 41544355, 41690387, 349582449, 35684115, 8968022147, 8651784699

Basic calculations (n = 640438690)

Multiplication

n×y
n×2 1280877380
n×3 1921316070
n×4 2561754760
n×5 3202193450

Division

n÷y
n÷2 320219345
n÷3 213479563.33333
n÷3 160109672.5
n÷5 128087738

Exponentiation

ny
n2 410161715648916100
n3 2.6268343185834E+26
n4 1.6823263298406E+35
n5 1.0774268708356E+44

Nth Root

y√n
2√n 25306.89016849
3√n 861.97073290633
4√n 159.0813947905
5√n 57.715905293342

Divisors of 640438690

1, 2, 5, 10, 313, 626, 1565, 3130, 204613, 409226, 1023065, 2046130, 64043869, 128087738, 320219345, 640438690

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -640438689
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 640438690 can be divided by 16 positive divisors. The sum of these divisors (counting 640438690) is 1, the average is 0.0625.

Base conversion 640438690

Base System Value
2 Binary 100110001011000101000110100010
3 Ternary 1122122002122201111
4 Quaternary 212023011012202
5 Quinary 2302423014230
6 Senary 143314453534
8 Octal 4613050642
10 Decimal 640438690
12 Duodecimal 15a5942aa
16 Hexadecimal 262c51a2
20 Vigesimal a02egea
36 Base36 alatnm

Cryptographic Hash Functions

md5 43ab1d51766d00a8adc20fd8a99e5276
sha1 ad2291b919086c660fba336cdd72c7ee385c22b0
sha256 79dc3ab45f932e44e366bac9ec0055c0767086f907447a75482c7c1343b63133
sha512 a93409f97eb5eefa14edafcac794295c8eb5b4a2b42a6255b1051ed4a5d50d9ba1e8aec820810c915ca121fdf16cb9296be84a6581417e2b974749efb6d92dd0
ripemd-160 c45f02668b2c4ea93518f1b880379b777422db65

640438690 as geometric shapes

Circle

Radius = n
Diameter 1280877380
Circumference 4023994967.1573
Area 1.2885610326664E+18

Sphere

Radius = n
Volume 1.1003257863279E+27
Surface area 5.1542441306657E+18
Circumference 4023994967.1573

Square

Length = n
Perimeter 2561754760
Area 410161715648916100
Diagonal 905717081.26646

Cube

Length = n
Surface area 2460970293893496600
Volume 2.6268343185834E+26
Space diagonal 1109272350.2129

Equilateral Triangle

Length = n
Perimeter 1921316070
Area 1.7760523270589E+17
Altitude 554636175.10643

Triangular Pyramid

Length = n
Surface area 1.7760523270589E+17
Volume 3.0957539328732E+25
Height 301905693.75549