1981444090 is an even 10-digits composite number following 1981444089
and preceding 1981444091 . In scientific notation, it is written as 1.981444090 × 10^9.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 779584320 positive integers (up to 1981444090) that are relatively prime to 1981444090.
1981444090 has 16 divisors, whose sum is 3625069320
The reverse of 1981444090 is 0904441891
Previous prime number is 61
Is Prime? no
Number parity even
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion nine hundred eighty-one million four hundred forty-four thousand ninety
Scientific notation
1.981444090 × 10^9
Engineering notation
1.981444090 × 10^9
Prime Factorization
2 × 5 × 61 × 3248269
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981444090
Product of the distinct prime numbers
The prime factorization of 1981444090 is 2 × 5 × 61 × 3248269.
Since it has a total of 4 prime factors.
9 , 1 , 99 , 18 , 531 , 515 , 2493 , 7193 , 3980 , 17260 , 131253 , 777933 , 1842086 , 9491247 , 19148189 , 74404669 , 233828326 , 986022509 , 9380796131 , 8529303588
n×2
3962888180
n×3
5944332270
n×4
7925776360
n×5
9907220450
n÷2
990722045
n÷3
660481363.33333
n÷3
495361022.5
n÷5
396288818
n2
3926120681795928100
n3
7.7793886215713E+27
n4
1.5414423608026E+37
n5
3.0542818558879E+46
2 √n
44513.41471961
3 √n
1256.0124399521
4 √n
210.98202463625
5 √n
72.342974994176
1 , 2 , 5 , 10 , 61 , 122 , 305 , 610 , 3248269 , 6496538 , 16241345 , 32482690 , 198144409 , 396288818 , 990722045 , 1981444090
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981444089
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981444090 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981444090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000110100110111111111010
3
Ternary
12010002102210022011
4
Quaternary
1312012212333322
5
Quinary
13024222202330
6
Senary
524341120134
8
Octal
16606467772
10
Decimal
1981444090
12
Duodecimal
4736b904a
16
Hexadecimal
761a6ffa
20
Vigesimal
1aj40a4a
36
Base36
wrp81m
md5
df8006bf608cf3f2170cbbf8c8a54bc1
sha1
bd0567aaab2a8ab1bfb82d0d19f4899635176fa0
sha256
146118bffdb2a6690fdeccccba9df58beeaa3039c73e8ff69f25f13d5f7ad65b
sha512
cb84ec75ceb6e3b0a90fdcfe87f8e3937438c1513bee17af4e6488fe8af91b8065fc0efab135c32516e564b8a3b2ebe5fe58364c2463bd739178e8d61a6957d8
ripemd-160
1de71943bf90ad15ca3c6c5c403cbdcee71079a6
Diameter
3962888180
Circumference
12449780393.286
Area
1.2334271891037E+19
Volume
3.2586226857265E+28
Surface area
4.9337087564148E+19
Circumference
12449780393.286
Perimeter
7925776360
Area
3926120681795928100
Diagonal
2802185105.162
Surface area
2.3556724090776E+19
Volume
7.7793886215713E+27
Space diagonal
3431961836.2371
Perimeter
5944332270
Area
1.7000601243794E+18
Altitude
1715980918.1185
Surface area
1.7000601243794E+18
Volume
9.1680974129976E+26
Height
934061701.72067