145428781 (number)

145428781 is an odd 9-digits composite number following 145428780 and preceding 145428782. In scientific notation, it is written as 1.45428781 × 10^8. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 138101760 positive integers (up to 145428781) that are relatively prime to 145428781.

Interesting facts

Basic properties

Name

Name one hundred forty-five million four hundred twenty-eight thousand seven hundred eighty-one

Notation

Scientific notation 1.45428781 × 10^8
Engineering notation 1.45428781 × 10^6

Prime Factorization of 145428781

Prime Factorization 31 × 24307 × 193

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 145428781
Product of the distinct prime numbers

The prime factorization of 145428781 is 31 × 24307 × 193. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 145428781)

Multiplication

n×y
n×2 290857562
n×3 436286343
n×4 581715124
n×5 727143905

Division

n÷y
n÷2 72714390.5
n÷3 48476260.333333
n÷3 36357195.25
n÷5 29085756.2

Exponentiation

ny
n2 21149530343145961
n3 3.0757504165262E+24
n4 4.4730263373565E+32
n5 6.5050676762265E+40

Nth Root

y√n
2√n 12059.385597948
3√n 525.87612560986
4√n 109.81523390654
5√n 42.907189933813

Divisors of 145428781

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 -145428780
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 145428781 can be divided by 8 positive divisors. The sum of these divisors (counting 145428781) is 1, the average is 0.125.

Base conversion 145428781

Base System Value
2 Binary 1000101010110001000100101101
3 Ternary 101010122112210011
4 Quaternary 20222301010231
5 Quinary 244212210111
6 Senary 22233013221
8 Octal 1052610455
10 Decimal 145428781
12 Duodecimal 40854211
16 Hexadecimal 8ab112d
20 Vigesimal 258ibj1
36 Base36 2el1kd

Cryptographic Hash Functions

md5 1ec4273af0427588708a56e8a6c46307
sha1 b3b86ff3ec9a7728224af08a6e0404199e1fc7b3
sha256 986aed65043d0ef072ea8fe9a10f87089c2f702ce19ec46591a709adac5afb58
sha512 8f6e7ab6f2a32cfa3c6f9df5e444873433b7d32666eb9ccb2363223dae06ea4a86e8be2392a10e05d36a99470689091d5841865d094b79d7cf9f126cb9a3a5bc
ripemd-160 a60b97db6c1d71f2cf70159188711394d63dcf58

145428781 as geometric shapes

Circle

Radius = n
Diameter 290857562
Circumference 913755980.02024
Area 6.6443209152902E+16

Sphere

Radius = n
Volume 1.2883673217113E+25
Surface area 2.6577283661161E+17
Circumference 913755980.02024

Square

Length = n
Perimeter 581715124
Area 21149530343145961
Diagonal 205667354.44959

Cube

Length = n
Surface area 126897182058875766
Volume 3.0757504165262E+24
Space diagonal 251890037.57481

Equilateral Triangle

Length = n
Perimeter 436286343
Area 9.1580152776371E+15
Altitude 125945018.7874

Triangular Pyramid

Length = n
Surface area 9.1580152776371E+15
Volume 3.6248066279384E+23
Height 68555784.816529