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.
145428781 has 8 divisors, whose sum is 150904064
The reverse of 145428781 is 187824541
Previous prime number is 24307
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred forty-five million four hundred twenty-eight thousand seven hundred eighty-one
Scientific notation
1.45428781 × 10^8
Engineering notation
1.45428781 × 10^6
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.
4 , 9 , 67 , 30 , 769 , 583 , 9879 , 8676 , 79223 , 24099 , 418794 , 759448 , 2037253 , 5707652 , 43687523 , 60826542 , 682428313 , 472290660 , 5664172308 , 4909073733
n×2
290857562
n×3
436286343
n×4
581715124
n×5
727143905
n÷2
72714390.5
n÷3
48476260.333333
n÷3
36357195.25
n÷5
29085756.2
n2
21149530343145961
n3
3.0757504165262E+24
n4
4.4730263373565E+32
n5
6.5050676762265E+40
2 √n
12059.385597948
3 √n
525.87612560986
4 √n
109.81523390654
5 √n
42.907189933813
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
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
md5
1ec4273af0427588708a56e8a6c46307
sha1
b3b86ff3ec9a7728224af08a6e0404199e1fc7b3
sha256
986aed65043d0ef072ea8fe9a10f87089c2f702ce19ec46591a709adac5afb58
sha512
8f6e7ab6f2a32cfa3c6f9df5e444873433b7d32666eb9ccb2363223dae06ea4a86e8be2392a10e05d36a99470689091d5841865d094b79d7cf9f126cb9a3a5bc
ripemd-160
a60b97db6c1d71f2cf70159188711394d63dcf58
Diameter
290857562
Circumference
913755980.02024
Area
6.6443209152902E+16
Volume
1.2883673217113E+25
Surface area
2.6577283661161E+17
Circumference
913755980.02024
Perimeter
581715124
Area
21149530343145961
Diagonal
205667354.44959
Surface area
126897182058875766
Volume
3.0757504165262E+24
Space diagonal
251890037.57481
Perimeter
436286343
Area
9.1580152776371E+15
Altitude
125945018.7874
Surface area
9.1580152776371E+15
Volume
3.6248066279384E+23
Height
68555784.816529