145445981 is an odd 9-digits composite number following 145445980
and preceding 145445982 . In scientific notation, it is written as 1.45445981 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 145411200 positive integers (up to 145445981) that are relatively prime to 145445981.
145445981 has 4 divisors, whose sum is 145480764
The reverse of 145445981 is 189544541
Previous prime number is 4861
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred forty-five million four hundred forty-five thousand nine hundred eighty-one
Scientific notation
1.45445981 × 10^8
Engineering notation
1.45445981 × 10^6
Prime Factorization
4861 × 29921
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
145445981
Product of the distinct prime numbers
The prime factorization of 145445981 is 4861 × 29921.
Since it has a total of 2 prime factors.
2 , 4 , 69 , 68 , 148 , 476 , 2911 , 2635 , 28661 , 8887 , 425472 , 761359 , 9691609 , 4242728 , 13257819 , 95439815 , 785008509 , 135458351 , 3255326660 , 8458201184
n×2
290891962
n×3
436337943
n×4
581783924
n×5
727229905
n÷2
72722990.5
n÷3
48481993.666667
n÷3
36361495.25
n÷5
29089196.2
n2
21154533389052361
n3
3.076841861368E+24
n4
4.4751428290853E+32
n5
6.5089153889143E+40
2 √n
12060.098714356
3 √n
525.8968567488
4 √n
109.81848075053
5 √n
42.90820482062
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-145445980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 145445981 can be divided by 4 positive divisors.
The sum of these divisors (counting 145445981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101010110101010001011101
3
Ternary
101010200102101012
4
Quaternary
20222311101131
5
Quinary
244213232411
6
Senary
22233225005
8
Octal
1052652135
10
Decimal
145445981
12
Duodecimal
40862165
16
Hexadecimal
8ab545d
20
Vigesimal
2590ej1
36
Base36
2eleu5
md5
3a5f72f4bcb286ae69516f1d44135a03
sha1
720221f5950d272ea6678588de206c9bbbb70b62
sha256
2ab6ac1daa43487d86f48e8933d9da994955660ecd4765dbfa82f7923daa3ade
sha512
8697caffeeac40dd9012ba942bdb74849f59edc6af61e5b55d9bb007574a53e6c0efa18d2577e077548b9d40540e23e23fd2099f359b6d554939e92d1d261ca5
ripemd-160
a95c2fa90ba12d4b59a4043090ae3a7c38ab3bed
Diameter
290891962
Circumference
913864050.80752
Area
6.6458926685167E+16
Volume
1.2888245050575E+25
Surface area
2.6583570674067E+17
Circumference
913864050.80752
Perimeter
581783924
Area
21154533389052361
Diagonal
205691678.92286
Surface area
126927200334314166
Volume
3.076841861368E+24
Space diagonal
251919828.8487
Perimeter
436337943
Area
9.1601816600627E+15
Altitude
125959914.42435
Surface area
9.1601816600627E+15
Volume
3.6260929080199E+23
Height
68563892.974287