640968905 (number)

640968905 is an odd 9-digits composite number following 640968904 and preceding 640968906. In scientific notation, it is written as 6.40968905 × 10^8. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 512224128 positive integers (up to 640968905) that are relatively prime to 640968905.

Interesting facts

Basic properties

Name

Name six hundred forty million nine hundred sixty-eight thousand nine hundred five

Notation

Scientific notation 6.40968905 × 10^8
Engineering notation 6.40968905 × 10^6

Prime Factorization of 640968905

Prime Factorization 5 × 937 × 136813

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 640968905
Product of the distinct prime numbers

The prime factorization of 640968905 is 5 × 937 × 136813. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 4, 54, 64, 617, 604, 8632, 2697, 65720, 40601, 82563, 3784, 7629193, 4598440, 87979938, 80215543, 825831794, 564723854, 5435711807, 9802855448

Basic calculations (n = 640968905)

Multiplication

n×y
n×2 1281937810
n×3 1922906715
n×4 2563875620
n×5 3204844525

Division

n÷y
n÷2 320484452.5
n÷3 213656301.66667
n÷3 160242226.25
n÷5 128193781

Exponentiation

ny
n2 410841137176899025
n3 2.6333639382523E+26
n4 1.6879043999681E+35
n5 1.0818942349922E+44

Nth Root

y√n
2√n 25317.363705568
3√n 862.20854060141
4√n 159.11431018475
5√n 57.725458654252

Divisors of 640968905

1, 5, 937, 4685, 136813, 684065, 128193781, 640968905

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 -640968904
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 640968905 can be divided by 8 positive divisors. The sum of these divisors (counting 640968905) is 1, the average is 0.125.

Base conversion 640968905

Base System Value
2 Binary 100110001101000110100011001001
3 Ternary 1122200002121001002
4 Quaternary 212031012203021
5 Quinary 2303042001110
6 Senary 143334104345
8 Octal 4615064311
10 Decimal 640968905
12 Duodecimal 15a7ab0b5
16 Hexadecimal 263468c9
20 Vigesimal a061255
36 Base36 alm6rt

Cryptographic Hash Functions

md5 429c50820484b2373ae03af18f61d887
sha1 e237b65b62400d4ecc89036c033f7582acd55c62
sha256 c774ef0e8ca786f28039c624de52f2dff8ce32ecf55867f2c95ead242c67a278
sha512 dd20d48afcb50752ccf6bc5fda546d69c58acb78864ce075241c8befbaa020f64ad6cc3debaa8890143205a688a3e4807693161fbc15e67d3c5dbd9d31781d01
ripemd-160 58f7cf4845db752f8ac557a399a3380ccf9ae266

640968905 as geometric shapes

Circle

Radius = n
Diameter 1281937810
Circumference 4027326406.255
Area 1.2906954983474E+18

Sphere

Radius = n
Volume 1.1030609070189E+27
Surface area 5.1627819933897E+18
Circumference 4027326406.255

Square

Length = n
Perimeter 2563875620
Area 410841137176899025
Diagonal 906466918.51043

Cube

Length = n
Surface area 2465046823061394150
Volume 2.6333639382523E+26
Space diagonal 1110190709.5318

Equilateral Triangle

Length = n
Perimeter 1922906715
Area 1.7789943085744E+17
Altitude 555095354.76589

Triangular Pyramid

Length = n
Surface area 1.7789943085744E+17
Volume 3.1034491634505E+25
Height 302155639.50348