66778821 (number)

66778821 is an odd 8-digits composite number following 66778820 and preceding 66778822. In scientific notation, it is written as 6.6778821 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 41427936 positive integers (up to 66778821) that are relatively prime to 66778821.

Interesting facts

Basic properties

Name

Name sixty-six million seven hundred seventy-eight thousand eight hundred twenty-one

Notation

Scientific notation 6.6778821 × 10^7
Engineering notation 6.6778821 × 10^6

Prime Factorization of 66778821

Prime Factorization 9 × 37 × 23 × 8719

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 66778821
Product of the distinct prime numbers

The prime factorization of 66778821 is 9 × 37 × 23 × 8719. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 67, 10, 640, 2, 9627, 6970, 83717, 26107, 117273, 427657, 3025054, 7660489, 76928986, 20037881, 932136277, 658630056, 3227831376, 8550490536

Basic calculations (n = 66778821)

Multiplication

n×y
n×2 133557642
n×3 200336463
n×4 267115284
n×5 333894105

Division

n÷y
n÷2 33389410.5
n÷3 22259607
n÷3 16694705.25
n÷5 13355764.2

Exponentiation

ny
n2 4459410934150041
n3 2.9779420453705E+23
n4 1.9886345879617E+31
n5 1.327986731839E+39

Nth Root

y√n
2√n 8171.8309453879
3√n 405.70738741802
4√n 90.398179989356
5√n 36.722120336997

Divisors of 66778821

1, 9, 23, 37, 207, 333, 851, 7659, 8719, 78471, 200537, 322603, 1804833, 2903427, 7419869, 66778821

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 -66778820
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 66778821 can be divided by 16 positive divisors. The sum of these divisors (counting 66778821) is 1, the average is 0.0625.

Base conversion 66778821

Base System Value
2 Binary 11111110101111011011000101
3 Ternary 11122122201022200
4 Quaternary 3332233123011
5 Quinary 114043410241
6 Senary 10343145113
8 Octal 376573305
10 Decimal 66778821
12 Duodecimal 1a445199
16 Hexadecimal 3faf6c5
20 Vigesimal 10h7711
36 Base36 13rav9

Cryptographic Hash Functions

md5 ef86d4b1cd52c442439b907e769db021
sha1 d8a4ff8200dc1c19d88e7f25ce2b8dd2d0172a0d
sha256 4cd9495d8421ef280baa084bd26685a5a175c925f23467e8ce2c42b56760b44b
sha512 38d8a3559b0d2296fc68a56222461b80e8848fe51b78754306881597e8120a0b6d1bc614f21abb809cace42fc39a259855945b82fb7fcaea66b9bd2fdd203081
ripemd-160 0f08f08d1767a2647a32fb3ed4f03e25f835eb1f

66778821 as geometric shapes

Circle

Radius = n
Diameter 133557642
Circumference 419583706.93798
Area 1.4009652630064E+16

Sphere

Radius = n
Volume 1.2473974470069E+24
Surface area 5.6038610520255E+16
Circumference 419583706.93798

Square

Length = n
Perimeter 267115284
Area 4459410934150041
Diagonal 94439514.337485

Cube

Length = n
Surface area 26756465604900246
Volume 2.9779420453705E+23
Space diagonal 115664310.84155

Equilateral Triangle

Length = n
Perimeter 200336463
Area 1.930981577444E+15
Altitude 57832155.420774

Triangular Pyramid

Length = n
Surface area 1.930981577444E+15
Volume 3.5095383571033E+22
Height 31479838.112495