66955981 (number)

66955981 is an odd 8-digits composite number following 66955980 and preceding 66955982. In scientific notation, it is written as 6.6955981 × 10^7. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 61890048 positive integers (up to 66955981) that are relatively prime to 66955981.

Interesting facts

Basic properties

Name

Name sixty-six million nine hundred fifty-five thousand nine hundred eighty-one

Notation

Scientific notation 6.6955981 × 10^7
Engineering notation 6.6955981 × 10^6

Prime Factorization of 66955981

Prime Factorization 19 × 67 × 149 × 353

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 66955981
Product of the distinct prime numbers

The prime factorization of 66955981 is 19 × 67 × 149 × 353. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 55, 69, 758, 185, 5638, 9864, 95039, 32466, 231038, 219554, 7954186, 4961223, 88403649, 78679593, 129559869, 147437722, 6609298615, 8803668781

Basic calculations (n = 66955981)

Multiplication

n×y
n×2 133911962
n×3 200867943
n×4 267823924
n×5 334779905

Division

n÷y
n÷2 33477990.5
n÷3 22318660.333333
n÷3 16738995.25
n÷5 13391196.2

Exponentiation

ny
n2 4483103391672361
n3 3.0017058551385E+23
n4 2.0098216020424E+31
n5 1.3456957699974E+39

Nth Root

y√n
2√n 8182.6634416918
3√n 406.06584265446
4√n 90.458075602413
5√n 36.741583987404

Divisors of 66955981

1, 19, 67, 149, 353, 1273, 2831, 6707, 9983, 23651, 52597, 189677, 449369, 999343, 3523999, 66955981

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 -66955980
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 66955981 can be divided by 16 positive divisors. The sum of these divisors (counting 66955981) is 1, the average is 0.0625.

Base conversion 66955981

Base System Value
2 Binary 11111111011010101011001101
3 Ternary 11122222201100011
4 Quaternary 3333122223031
5 Quinary 114120042411
6 Senary 10351033221
8 Octal 377325315
10 Decimal 66955981
12 Duodecimal 1a50b811
16 Hexadecimal 3fdaacd
20 Vigesimal 10i99j1
36 Base36 13v3kd

Cryptographic Hash Functions

md5 c9020380fe06624a69223c012038c475
sha1 4bab156bbf7db58f0ef9418b09e7bf456ccf3398
sha256 1c3476ba0e2d0fd44eee49f94d3eba7522729fe58eeff5d857bbd76481c8a23c
sha512 b814ecd035db471f6948b03370e91d384779038ff6e24b562d49c9e6690b98bb1e4c9a4d513c6a002ddfb23b8400eff92a30728bacda8aa5161272575303fb16
ripemd-160 d36e1842059c3b3c2b5dca4e1776319c93155d05

66955981 as geometric shapes

Circle

Radius = n
Diameter 133911962
Circumference 420696836.047
Area 1.4084084680561E+16

Sphere

Radius = n
Volume 1.2573516083654E+24
Surface area 5.6336338722245E+16
Circumference 420696836.047

Square

Length = n
Perimeter 267823924
Area 4483103391672361
Diagonal 94690056.412195

Cube

Length = n
Surface area 26898620350034166
Volume 3.0017058551385E+23
Space diagonal 115971160.96262

Equilateral Triangle

Length = n
Perimeter 200867943
Area 1.9412407124902E+15
Altitude 57985580.481308

Triangular Pyramid

Length = n
Surface area 1.9412407124902E+15
Volume 3.537544275493E+22
Height 31563352.137398