66449891 (number)

66449891 is an odd 8-digits composite number following 66449890 and preceding 66449892. In scientific notation, it is written as 6.6449891 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 6 positive divisors. There are 64652616 positive integers (up to 66449891) that are relatively prime to 66449891.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.6449891 × 10^7
Engineering notation 6.6449891 × 10^6

Prime Factorization of 66449891

Prime Factorization 37 × 37 × 48539

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1795943
Product of the distinct prime numbers

The prime factorization of 66449891 is 37 × 37 × 48539. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 66449891)

Multiplication

n×y
n×2 132899782
n×3 199349673
n×4 265799564
n×5 332249455

Division

n÷y
n÷2 33224945.5
n÷3 22149963.666667
n÷3 16612472.75
n÷5 13289978.2

Exponentiation

ny
n2 4415588013911881
n3 2.9341534222535E+23
n4 1.9497417508602E+31
n5 1.2956012682281E+39

Nth Root

y√n
2√n 8151.6802562417
3√n 405.04016469013
4√n 90.28665602536
5√n 36.68587268755

Divisors of 66449891

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66449890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66449891 can be divided by 6 positive divisors. The sum of these divisors (counting 66449891) is 1, the average is 0.16666666666667.

Base conversion 66449891

Base System Value
2 Binary 11111101011111000111100011
3 Ternary 11122001000010002
4 Quaternary 3331133013203
5 Quinary 114002344031
6 Senary 10332130215
8 Octal 375370743
10 Decimal 66449891
12 Duodecimal 1a30696b
16 Hexadecimal 3f5f1e3
20 Vigesimal 10f64eb
36 Base36 13k92b

Cryptographic Hash Functions

md5 0754dfe29f024f3daf825dfec8d91231
sha1 dbd03b6fbadb6509e190bc9b025738b4e57dfdd3
sha256 2201e72293d65c2d9e3dcb854ab4a700ce51e8eb1269aeba591b280470445e14
sha512 e3937ee0ccf70b7e306e75d282cfe53fef32be108bbb6f63e567a2e4d5847684f7cc45f18ca195118b8aa7fc078fce44ebc9cda8a60034c5cc4fb33902d78288
ripemd-160 4771feea8dbe9cb6823398f15eac741f0336fa29

66449891 as geometric shapes

Circle

Radius = n
Diameter 132899782
Circumference 417516978.79489
Area 1.3871978865785E+16

Sphere

Radius = n
Volume 1.2290553114476E+24
Surface area 5.5487915463139E+16
Circumference 417516978.79489

Square

Length = n
Perimeter 265799564
Area 4415588013911881
Diagonal 93974337.070414

Cube

Length = n
Surface area 26493528083471286
Volume 2.9341534222535E+23
Space diagonal 115094587.36941

Equilateral Triangle

Length = n
Perimeter 199349673
Area 1.9120056963469E+15
Altitude 57547293.684707

Triangular Pyramid

Length = n
Surface area 1.9120056963469E+15
Volume 3.457932969862E+22
Height 31324779.023471