1981749488 is an even 10-digits composite number following 1981749487
and preceding 1981749489 . In scientific notation, it is written as 1.981749488 × 10^9.
The sum of its digits is 59. It has a total of 6 prime factors and 20 positive divisors.
There are 990167040 positive integers (up to 1981749488) that are relatively prime to 1981749488.
1981749488 has 20 divisors, whose sum is 3842382048
The reverse of 1981749488 is 8849471891
Previous prime number is 1423
Is Prime? no
Number parity even
Number length 10
Sum of Digits 59
Digital Root 5
Name
one billion nine hundred eighty-one million seven hundred forty-nine thousand four hundred eighty-eight
Scientific notation
1.981749488 × 10^9
Engineering notation
1.981749488 × 10^9
Prime Factorization
2 × 2 × 2 × 2 × 1423 × 87041
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
247718686
Product of the distinct prime numbers
The prime factorization of 1981749488 is 2 × 2 × 2 × 2 × 1423 × 87041.
Since it has a total of 6 prime factors.
5 , 4 , 57 , 13 , 970 , 356 , 7571 , 9823 , 81693 , 10940 , 415594 , 822304 , 1094844 , 6537283 , 4812248 , 98907870 , 792103764 , 165520525 , 9777496063 , 3098493227
n×2
3963498976
n×3
5945248464
n×4
7926997952
n×5
9908747440
n÷2
990874744
n÷3
660583162.66667
n÷3
495437372
n÷5
396349897.6
n2
3927331033188262144
n3
7.7829862642273E+27
n4
1.5423929044244E+37
n5
3.0566363486378E+46
2 √n
44516.844991531
3 √n
1256.0769659517
4 √n
210.99015377863
5 √n
72.345204886811
1 , 2 , 4 , 8 , 16 , 1423 , 2846 , 5692 , 11384 , 22768 , 87041 , 174082 , 348164 , 696328 , 1392656 , 123859343 , 247718686 , 495437372 , 990874744 , 1981749488
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981749487
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981749488 can be divided by 20 positive divisors.
The sum of these divisors (counting 1981749488) is 1, the average is 0.05.
Base
System
Value
2
Binary
1110110000111110001100011110000
3
Ternary
12010010000022020012
4
Quaternary
1312013301203300
5
Quinary
13024311440423
6
Senary
524351434052
8
Octal
16607614360
10
Decimal
1981749488
12
Duodecimal
473825928
16
Hexadecimal
761f18f0
20
Vigesimal
1aj5ide8
36
Base36
wrvrow
md5
f2685151d03a2d6487a69fd4f87acd37
sha1
6b9ba7fa784595d5895e172e97bcd64383edef0a
sha256
2566f6b64812529b67b8274cc99b796b4e66d4cc08940e94faca0034456ff699
sha512
d3b0e9d0879191afa80faf4d1045628658397a105caeae22eca07b2ec2ed3a6064500bde246c5c32bac0db803cef68257db3c1279ab45fcaceccf9e2d3df3b39
ripemd-160
3fc3fbbb7f6b44ed46567a46db44dd442917fb64
Diameter
3963498976
Circumference
12451699265.512
Area
1.2338074322079E+19
Volume
3.2601296627583E+28
Surface area
4.9352297288318E+19
Circumference
12451699265.512
Perimeter
7926997952
Area
3927331033188262144
Diagonal
2802617003.1555
Surface area
2.356398619913E+19
Volume
7.7829862642273E+27
Space diagonal
3432490801.0896
Perimeter
5945248464
Area
1.700584221906E+18
Altitude
1716245400.5448
Surface area
1.700584221906E+18
Volume
9.1723372755282E+26
Height
934205667.71851