64991640 (number)

64991640 is an even 8-digits composite number following 64991639 and preceding 64991641. In scientific notation, it is written as 6.4991640 × 10^7. The sum of its digits is 39. It has a total of 8 prime factors and 128 positive divisors. There are 14845824 positive integers (up to 64991640) that are relatively prime to 64991640.

Interesting facts

Basic properties

Name

Name sixty-four million nine hundred ninety-one thousand six hundred forty

Notation

Scientific notation 6.4991640 × 10^7
Engineering notation 6.4991640 × 10^6

Prime Factorization of 64991640

Prime Factorization 2 × 2 × 2 × 3 × 5 × 49 × 7 × 1579

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 16247910
Product of the distinct prime numbers

The prime factorization of 64991640 is 2 × 2 × 2 × 3 × 5 × 49 × 7 × 1579. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 64991640)

Multiplication

n×y
n×2 129983280
n×3 194974920
n×4 259966560
n×5 324958200

Division

n÷y
n÷2 32495820
n÷3 21663880
n÷3 16247910
n÷5 12998328

Exponentiation

ny
n2 4223913269889600
n3 2.7451905062789E+23
n4 1.7841443311549E+31
n5 1.1595446607846E+39

Nth Root

y√n
2√n 8061.7392664362
3√n 402.05533754685
4√n 89.787188765638
5√n 36.523425192975

Divisors of 64991640

128 divisors

τ Total Divisors 128
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -64991639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0078125
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 128
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 64991640 can be divided by 128 positive divisors. The sum of these divisors (counting 64991640) is 1, the average is 0.0078125.

Base conversion 64991640

Base System Value
2 Binary 11110111111011000110011000
3 Ternary 11112021220202210
4 Quaternary 3313323012120
5 Quinary 113114213030
6 Senary 10240555120
8 Octal 367730630
10 Decimal 64991640
12 Duodecimal 19922aa0
16 Hexadecimal 3dfb198
20 Vigesimal 1063j20
36 Base36 12ozvc

Cryptographic Hash Functions

md5 d5cf8f2558ce0f5ab687ffecdb22c124
sha1 0822d4475cd6dfa5c265c16af987fedfe162d953
sha256 4ed3b6443f75e606cb16477f9c599ce56712fd17170d012c03dce0be3e2f313e
sha512 73ed5a5340819acaa2d84f0267b0388d1411722bcc8e3994d7a32013e2ed185e982c77cdc7b8e38edaf47ae8eb97ba1d086db6e006d92d20a36ee3edf3057006
ripemd-160 b6881207d093d00ac2eec7f03d52334333850e62

64991640 as geometric shapes

Circle

Radius = n
Diameter 129983280
Circumference 408354517.53751
Area 1.3269814898086E+16

Sphere

Radius = n
Volume 1.1499027102974E+24
Surface area 5.3079259592342E+16
Circumference 408354517.53751

Square

Length = n
Perimeter 259966560
Area 4223913269889600
Diagonal 91912058.72887

Cube

Length = n
Surface area 25343479619337600
Volume 2.7451905062789E+23
Space diagonal 112568822.54723

Equilateral Triangle

Length = n
Perimeter 194974920
Area 1.8290080975533E+15
Altitude 56284411.273613

Triangular Pyramid

Length = n
Surface area 1.8290080975533E+15
Volume 3.2352380377312E+22
Height 30637352.909623