66721808 (number)

66721808 is an even 8-digits composite number following 66721807 and preceding 66721809. In scientific notation, it is written as 6.6721808 × 10^7. The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors. There are 32210304 positive integers (up to 66721808) that are relatively prime to 66721808.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.6721808 × 10^7
Engineering notation 6.6721808 × 10^6

Prime Factorization of 66721808

Prime Factorization 2 × 2 × 2 × 2 × 29 × 143797

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 8340226
Product of the distinct prime numbers

The prime factorization of 66721808 is 2 × 2 × 2 × 2 × 29 × 143797. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 1, 97, 50, 283, 656, 5770, 7365, 78390, 33435, 976553, 210470, 5677140, 8520095, 43642823, 1257239, 258887093, 737901418, 808329674, 8691874069

Basic calculations (n = 66721808)

Multiplication

n×y
n×2 133443616
n×3 200165424
n×4 266887232
n×5 333609040

Division

n÷y
n÷2 33360904
n÷3 22240602.666667
n÷3 16680452
n÷5 13344361.6

Exponentiation

ny
n2 4451799662788864
n3 2.9703212235506E+23
n4 1.9818520237607E+31
n5 1.3223275021377E+39

Nth Root

y√n
2√n 8168.3418145913
3√n 405.59189580603
4√n 90.378879250582
5√n 36.715847828538

Divisors of 66721808

1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 143797, 287594, 575188, 1150376, 2300752, 4170113, 8340226, 16680452, 33360904, 66721808

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66721807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66721808 can be divided by 20 positive divisors. The sum of these divisors (counting 66721808) is 1, the average is 0.05.

Base conversion 66721808

Base System Value
2 Binary 11111110100001100000010000
3 Ternary 11122112211010002
4 Quaternary 3332201200100
5 Quinary 114040044213
6 Senary 10342025132
8 Octal 376414020
10 Decimal 66721808
12 Duodecimal 1a4181a8
16 Hexadecimal 3fa1810
20 Vigesimal 10h04a8
36 Base36 13q2vk

Cryptographic Hash Functions

md5 341baebc1b3909e36a823cdf7ad68ec4
sha1 bbc7edded0f55268cb149e36db6d6422ff568244
sha256 209563637f4b496a845ed7906dd4b6ae4ad09558f36008ddc540ede56e86c3d7
sha512 8eb989da6813bc5a5dc713977d178cfa6833b82f65a352dbce8916c8698771ff4b654e362e36be4f42d859726fe2af4a37c4ba6be9c97c97e687af4b8d2f124d
ripemd-160 637b8e44a1c8e23ed87a8d3fa3331acb9eacbd3c

66721808 as geometric shapes

Circle

Radius = n
Diameter 133443616
Circumference 419225483.69406
Area 1.3985741115871E+16

Sphere

Radius = n
Volume 1.2442052446278E+24
Surface area 5.5942964463484E+16
Circumference 419225483.69406

Square

Length = n
Perimeter 266887232
Area 4451799662788864
Diagonal 94358885.779654

Cube

Length = n
Surface area 26710797976733184
Volume 2.9703212235506E+23
Space diagonal 115565561.42886

Equilateral Triangle

Length = n
Perimeter 200165424
Area 1.9276858002671E+15
Altitude 57782780.714428

Triangular Pyramid

Length = n
Surface area 1.9276858002671E+15
Volume 3.5005571324583E+22
Height 31452961.926551