66991640 (number)

66991640 is an even 8-digits composite number following 66991639 and preceding 66991641. In scientific notation, it is written as 6.6991640 × 10^7. The sum of its digits is 41. It has a total of 6 prime factors and 32 positive divisors. There are 25631232 positive integers (up to 66991640) that are relatively prime to 66991640.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.6991640 × 10^7
Engineering notation 6.6991640 × 10^6

Prime Factorization of 66991640

Prime Factorization 2 × 2 × 2 × 5 × 23 × 72817

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 16747910
Product of the distinct prime numbers

The prime factorization of 66991640 is 2 × 2 × 2 × 5 × 23 × 72817. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 2, 21, 74, 242, 670, 7314, 5978, 51084, 28965, 413634, 510217, 9581729, 2854632, 6079997, 91226066, 528217787, 207273030, 8129138521, 3492027248

Basic calculations (n = 66991640)

Multiplication

n×y
n×2 133983280
n×3 200974920
n×4 267966560
n×5 334958200

Division

n÷y
n÷2 33495820
n÷3 22330546.666667
n÷3 16747910
n÷5 13398328

Exponentiation

ny
n2 4487879829889600
n3 3.0065042992723E+23
n4 2.014106536753E+31
n5 1.349283000318E+39

Nth Root

y√n
2√n 8184.8420876642
3√n 406.13791653489
4√n 90.47011709766
5√n 36.74549667484

Divisors of 66991640

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 72817, 145634, 291268, 364085, 582536, 728170, 1456340, 1674791, 2912680, 3349582, 6699164, 8373955, 13398328, 16747910, 33495820, 66991640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66991639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66991640 can be divided by 32 positive divisors. The sum of these divisors (counting 66991640) is 1, the average is 0.03125.

Base conversion 66991640

Base System Value
2 Binary 11111111100011011000011000
3 Ternary 11200001112020212
4 Quaternary 3333203120120
5 Quinary 114122213030
6 Senary 10351510252
8 Octal 377433030
10 Decimal 66991640
12 Duodecimal 1a528388
16 Hexadecimal 3fe3618
20 Vigesimal 10idj20
36 Base36 13vv2w

Cryptographic Hash Functions

md5 934be50f02aace338f8a695dd53413a1
sha1 64022dd03ef74dacba3936e1f53a0333f51da33f
sha256 081ca5ab339771ada8f88373624936b5e5300add6790a5f1719996db46208ca4
sha512 a8e172e3e598d2addf43bc4cfd82a012a238d3a015604c3663a53da1a018b59c055aeb25ccc04ab64e19c834ed47f281ec137b1c48d4a747c3606b6ad26ffb47
ripemd-160 4358adbfc176afeceaf324385af6c6409f95ca8d

66991640 as geometric shapes

Circle

Radius = n
Diameter 133983280
Circumference 420920888.15186
Area 1.4099090303775E+16

Sphere

Radius = n
Volume 1.259361575944E+24
Surface area 5.63963612151E+16
Circumference 420920888.15186

Square

Length = n
Perimeter 267966560
Area 4487879829889600
Diagonal 94740485.853616

Cube

Length = n
Surface area 26927278979337600
Volume 3.0065042992723E+23
Space diagonal 116032924.16236

Equilateral Triangle

Length = n
Perimeter 200974920
Area 1.9433089709081E+15
Altitude 58016462.081182

Triangular Pyramid

Length = n
Surface area 1.9433089709081E+15
Volume 3.5431992961365E+22
Height 31580161.951205