72781421 (number)

72781421 is an odd 8-digits composite number following 72781420 and preceding 72781422. In scientific notation, it is written as 7.2781421 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 72202480 positive integers (up to 72781421) that are relatively prime to 72781421.

Interesting facts

Basic properties

Name

Name seventy-two million seven hundred eighty-one thousand four hundred twenty-one

Notation

Scientific notation 7.2781421 × 10^7
Engineering notation 7.2781421 × 10^6

Prime Factorization of 72781421

Prime Factorization 227 × 491 × 653

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 72781421
Product of the distinct prime numbers

The prime factorization of 72781421 is 227 × 491 × 653. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 8, 7, 55, 89, 464, 8845, 3011, 11236, 37776, 215132, 694813, 4722471, 3425822, 87229076, 68820766, 780146273, 354549428, 82454356, 8317544737

Basic calculations (n = 72781421)

Multiplication

n×y
n×2 145562842
n×3 218344263
n×4 291125684
n×5 363907105

Division

n÷y
n÷2 36390710.5
n÷3 24260473.666667
n÷3 18195355.25
n÷5 14556284.2

Exponentiation

ny
n2 5297135242779241
n3 3.8553303019865E+23
n4 2.8059641780294E+31
n5 2.0422206015208E+39

Nth Root

y√n
2√n 8531.2027874151
3√n 417.51637212142
4√n 92.36451043239
5√n 37.359762449057

Divisors of 72781421

1, 227, 491, 653, 111457, 148231, 320623, 72781421

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72781420
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72781421 can be divided by 8 positive divisors. The sum of these divisors (counting 72781421) is 1, the average is 0.125.

Base conversion 72781421

Base System Value
2 Binary 100010101101000111001101101
3 Ternary 12001221200100012
4 Quaternary 10111220321231
5 Quinary 122113001141
6 Senary 11115543005
8 Octal 425507155
10 Decimal 72781421
12 Duodecimal 2045aa65
16 Hexadecimal 4568e6d
20 Vigesimal 12ehdb1
36 Base36 17byi5

Cryptographic Hash Functions

md5 90f0bcc7105748c12329c529e63e6e13
sha1 41de005f33896a329e8736bc604d37cdbf13c46b
sha256 71bc6dca8d7507d3a6ac5584fa5d3e7d25028abf1a6fe15489db3d0fb5a7cc34
sha512 42c5c04efca8d36f942e89c8864fa254674d4f214613539f8fde815546e39360a98f5a32c9d2218ab4dbfdce378fd6a54986ff8307cad2077015583e17299521
ripemd-160 6bf9722965b9e216a3e902a45c71123652e5ec8a

72781421 as geometric shapes

Circle

Radius = n
Diameter 145562842
Circumference 457299155.06285
Area 1.6641441163787E+16

Sphere

Radius = n
Volume 1.6149169805177E+24
Surface area 6.6565764655147E+16
Circumference 457299155.06285

Square

Length = n
Perimeter 291125684
Area 5297135242779241
Diagonal 102928472.66699

Cube

Length = n
Surface area 31782811456675446
Volume 3.8553303019865E+23
Space diagonal 126061119.01906

Equilateral Triangle

Length = n
Perimeter 218344263
Area 2.2937268437643E+15
Altitude 63030559.50953

Triangular Pyramid

Length = n
Surface area 2.2937268437643E+15
Volume 4.5435503337478E+22
Height 34309490.888995