66781640 (number)

66781640 is an even 8-digits composite number following 66781639 and preceding 66781641. In scientific notation, it is written as 6.6781640 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors. There are 26712640 positive integers (up to 66781640) that are relatively prime to 66781640.

Interesting facts

Basic properties

Name

Name sixty-six million seven hundred eighty-one thousand six hundred forty

Notation

Scientific notation 6.6781640 × 10^7
Engineering notation 6.6781640 × 10^6

Prime Factorization of 66781640

Prime Factorization 2 × 2 × 2 × 5 × 1669541

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 16695410
Product of the distinct prime numbers

The prime factorization of 66781640 is 2 × 2 × 2 × 5 × 1669541. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 8, 68, 80, 601, 3, 770, 3027, 71579, 67960, 662198, 191587, 3875033, 2845663, 75484085, 25471269, 35288693, 499799362, 1871847458, 961246807

Basic calculations (n = 66781640)

Multiplication

n×y
n×2 133563280
n×3 200344920
n×4 267126560
n×5 333908200

Division

n÷y
n÷2 33390820
n÷3 22260546.666667
n÷3 16695410
n÷5 13356328

Exponentiation

ny
n2 4459787441089600
n3 2.9783191936737E+23
n4 1.9889704019701E+31
n5 1.3282670535502E+39

Nth Root

y√n
2√n 8172.0034263331
3√n 405.71309617924
4√n 90.399133991057
5√n 36.722430369153

Divisors of 66781640

1, 2, 4, 5, 8, 10, 20, 40, 1669541, 3339082, 6678164, 8347705, 13356328, 16695410, 33390820, 66781640

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 -66781639
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 66781640 can be divided by 16 positive divisors. The sum of these divisors (counting 66781640) is 1, the average is 0.0625.

Base conversion 66781640

Base System Value
2 Binary 11111110110000000111001000
3 Ternary 11122122212012002
4 Quaternary 3332300013020
5 Quinary 114044003030
6 Senary 10343210132
8 Octal 376600710
10 Decimal 66781640
12 Duodecimal 1a446948
16 Hexadecimal 3fb01c8
20 Vigesimal 10h7e20
36 Base36 13rd1k

Cryptographic Hash Functions

md5 297737156a3bb743e2517a10bb8af862
sha1 3c543a6f10ff456b001d320a46e6a2f530b99c64
sha256 eb6f0c6f2bea0ba7b53f89c66e78252c48f1d712b2869daeeb3a11d54f429f70
sha512 95e89ef9318510d293bc28658123ae653e08b4bcf2bd088bb81778d4a8986dea514505eea0ae98ca75de30370bae3f4751f700153b88bf7dfd3abbf6b164fa93
ripemd-160 8efa998a8d46ab05c6dbc6260de4f1412d0e81e7

66781640 as geometric shapes

Circle

Radius = n
Diameter 133563280
Circumference 419601419.23736
Area 1.4010835461499E+16

Sphere

Radius = n
Volume 1.2475554265188E+24
Surface area 5.6043341845996E+16
Circumference 419601419.23736

Square

Length = n
Perimeter 267126560
Area 4459787441089600
Diagonal 94443501.005518

Cube

Length = n
Surface area 26758724646537600
Volume 2.9783191936737E+23
Space diagonal 115669193.49277

Equilateral Triangle

Length = n
Perimeter 200344920
Area 1.9311446097312E+15
Altitude 57834596.746387

Triangular Pyramid

Length = n
Surface area 1.9311446097312E+15
Volume 3.5099828306412E+22
Height 31481167.001839