640978145 (number)

640978145 is an odd 9-digits composite number following 640978144 and preceding 640978146. In scientific notation, it is written as 6.40978145 × 10^8. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 490487536 positive integers (up to 640978145) that are relatively prime to 640978145.

Interesting facts

Basic properties

Name

Name six hundred forty million nine hundred seventy-eight thousand one hundred forty-five

Notation

Scientific notation 6.40978145 × 10^8
Engineering notation 6.40978145 × 10^6

Prime Factorization of 640978145

Prime Factorization 5 × 23 × 5573723

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 640978145
Product of the distinct prime numbers

The prime factorization of 640978145 is 5 × 23 × 5573723. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 4, 66, 32, 483, 144, 1675, 9081, 10379, 91640, 541168, 598894, 107908, 4417177, 74417610, 89412408, 236439067, 970208137, 9630540483, 8632841129

Basic calculations (n = 640978145)

Multiplication

n×y
n×2 1281956290
n×3 1922934435
n×4 2563912580
n×5 3204890725

Division

n÷y
n÷2 320489072.5
n÷3 213659381.66667
n÷3 160244536.25
n÷5 128195629

Exponentiation

ny
n2 410852982367641025
n3 2.6334778250573E+26
n4 1.6880017312039E+35
n5 1.0819722184238E+44

Nth Root

y√n
2√n 25317.546188365
3√n 862.2126836878
4√n 159.11488361673
5√n 57.725625083593

Divisors of 640978145

1, 5, 23, 115, 5573723, 27868615, 128195629, 640978145

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 -640978144
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 640978145 can be divided by 8 positive divisors. The sum of these divisors (counting 640978145) is 1, the average is 0.125.

Base conversion 640978145

Base System Value
2 Binary 100110001101001000110011100001
3 Ternary 1122200010001201022
4 Quaternary 212031020303201
5 Quinary 2303042300040
6 Senary 143334215225
8 Octal 4615106341
10 Decimal 640978145
12 Duodecimal 15a7b4515
16 Hexadecimal 26348ce1
20 Vigesimal a062575
36 Base36 almdwh

Cryptographic Hash Functions

md5 5316b4db7335e574d7d766446481ff84
sha1 a1836715bc4438951e1d0683bb7b20876a6a2df3
sha256 31ab082e39684a792825b10ab4456071b0ceb397c3cecdea28734671af1b8633
sha512 ad750cedeb7308e3332f44f14298a1edf23e811b9dedd8732f6432369bb55599566ada826b1e051b9d4d7638e066ea37fc3f98b032c8c499316bc0662fea1417
ripemd-160 cf2971d9074136bc34c93145bf3efccd7d7c1c07

640978145 as geometric shapes

Circle

Radius = n
Diameter 1281956290
Circumference 4027384462.8872
Area 1.2907327111116E+18

Sphere

Radius = n
Volume 1.1031086118122E+27
Surface area 5.1629308444466E+18
Circumference 4027384462.8872

Square

Length = n
Perimeter 2563912580
Area 410852982367641025
Diagonal 906479985.84375

Cube

Length = n
Surface area 2465117894205846150
Volume 2.6334778250573E+26
Space diagonal 1110206713.6813

Equilateral Triangle

Length = n
Perimeter 1922934435
Area 1.7790455997549E+17
Altitude 555103356.84063

Triangular Pyramid

Length = n
Surface area 1.7790455997549E+17
Volume 3.1035833803373E+25
Height 302159995.28125