142444981 is an odd 9-digits composite number following 142444980
and preceding 142444982 . In scientific notation, it is written as 1.42444981 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 122095692 positive integers (up to 142444981) that are relatively prime to 142444981.
142444981 has 4 divisors, whose sum is 162794272
The reverse of 142444981 is 189444241
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred forty-two million four hundred forty-four thousand nine hundred eighty-one
Scientific notation
1.42444981 × 10^8
Engineering notation
1.42444981 × 10^6
Prime Factorization
7 × 20349283
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
142444981
Product of the distinct prime numbers
The prime factorization of 142444981 is 7 × 20349283.
Since it has a total of 2 prime factors.
3 , 9 , 49 , 98 , 296 , 834 , 4507 , 8666 , 97540 , 90318 , 963908 , 311984 , 6414681 , 8202735 , 64039103 , 3818209 , 12069702 , 844199996 , 8561759736 , 7224333329
n×2
284889962
n×3
427334943
n×4
569779924
n×5
712224905
n÷2
71222490.5
n÷3
47481660.333333
n÷3
35611245.25
n÷5
28488996.2
n2
20290572612090361
n3
2.8902902302083E+24
n4
4.1170733692651E+32
n5
5.8645643786058E+40
2 √n
11935.031671512
3 √n
522.25473222656
4 √n
109.24757055199
5 √n
42.729659328678
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
-142444980
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 142444981 can be divided by 4 positive divisors.
The sum of these divisors (counting 142444981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000011111011000100110110101
3
Ternary
100221000221210001
4
Quaternary
20133120212311
5
Quinary
242431214411
6
Senary
22045031301
8
Octal
1037304665
10
Decimal
142444981
12
Duodecimal
3b855531
16
Hexadecimal
87d89b5
20
Vigesimal
24a5c91
36
Base36
2ct391
md5
b813b2060d5e5e31a71f826415474b95
sha1
b305d301ada97ab0d2cfd55944e5b140c876b6b4
sha256
20b49940999eade4c95daa62a7fb48401825a12156de28ec25074bddbbf6a08c
sha512
1001f9f66d9dd7bc27d515141829a0cadbb7b8d7583f32559cb6a455ea0c265d7339df48aa1f1161716bb50d6e1d017cc26c6f1aca034774268f57f13619baf7
ripemd-160
19428c64415d54af406b197ec08e06bde9f27372
Diameter
284889962
Circumference
895008211.70068
Area
6.3744713855273E+16
Volume
1.2106819405286E+25
Surface area
2.5497885542109E+17
Circumference
895008211.70068
Perimeter
569779924
Area
20290572612090361
Diagonal
201447624.02218
Surface area
121743435672542166
Volume
2.8902902302083E+24
Space diagonal
246721944.37518
Perimeter
427334943
Area
8.7860756697015E+15
Altitude
123360972.18759
Surface area
8.7860756697015E+15
Volume
3.4062397022959E+23
Height
67149208.007393