1981330591 is an odd 10-digits composite number following 1981330590
and preceding 1981330592 . In scientific notation, it is written as 1.981330591 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1966205800 positive integers (up to 1981330591) that are relatively prime to 1981330591.
1981330591 has 4 divisors, whose sum is 1996455384
The reverse of 1981330591 is 1950331891
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion nine hundred eighty-one million three hundred thirty thousand five hundred ninety-one
Scientific notation
1.981330591 × 10^9
Engineering notation
1.981330591 × 10^9
Prime Factorization
131 × 15124661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1981330591
Product of the distinct prime numbers
The prime factorization of 1981330591 is 131 × 15124661.
Since it has a total of 2 prime factors.
2 , 5 , 75 , 83 , 396 , 15 , 9153 , 2194 , 41807 , 45753 , 87372 , 71199 , 3039664 , 5227452 , 38865691 , 98712517 , 382692381 , 609517218 , 2649583675 , 153267890
n×2
3962661182
n×3
5943991773
n×4
7925322364
n×5
9906652955
n÷2
990665295.5
n÷3
660443530.33333
n÷3
495332647.75
n÷5
396266118.2
n2
3925670910832409281
n3
7.7780518658311E+27
n4
1.5410892100156E+37
n5
3.0534071952639E+46
2 √n
44512.13981601
3 √n
1255.9884576322
4 √n
210.97900325864
5 √n
72.342146200318
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
-1981330590
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 1981330591 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981330591) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000110001011010010011111
3
Ternary
12010002020000121111
4
Quaternary
1312012023102133
5
Quinary
13024210034331
6
Senary
524334442451
8
Octal
16606132237
10
Decimal
1981330591
12
Duodecimal
473663427
16
Hexadecimal
7618b49f
20
Vigesimal
1aj3669b
36
Base36
wrmsgv
md5
4cfbeba2d323ad66977974ed5f0f6079
sha1
f2d2afcbbd1500ae717290ad46f0ab7775ac8475
sha256
839bcc802e3a5fcf4a6474d3f80bf5acbb83b0cd82bf0ab24d2e33b7b9494cc5
sha512
524a4ad479f9a57bca0c99e9ce1b0380c379fb33a6070ab74026e9fc6e838c2304edea437a95609bce30ec43530f832d0c920cb723b50907e3ed2026b96dff40
ripemd-160
06888d3907edba18ec1ca57eeb92b12742ba9ed3
Diameter
3962661182
Circumference
12449067258.037
Area
1.2332858893882E+19
Volume
3.2580627467914E+28
Surface area
4.9331435575529E+19
Circumference
12449067258.037
Perimeter
7925322364
Area
3925670910832409281
Diagonal
2802024593.3369
Surface area
2.3554025464994E+19
Volume
7.7780518658311E+27
Space diagonal
3431765250.2025
Perimeter
5943991773
Area
1.6998653678392E+18
Altitude
1715882625.1012
Surface area
1.6998653678392E+18
Volume
9.1665220312497E+26
Height
934008197.77897