1981831507 is an odd 10-digits prime number following 1981831506
and preceding 1981831508 . In scientific notation, it is written as 1.981831507 × 10^9.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 1981831506 positive integers (up to 1981831507) that are relatively prime to 1981831507.
1981831507 has 2 divisors, whose sum is 1981831508
The reverse of 1981831507 is 7051381891
Previous prime number is 1
Is Prime? yes Number parity odd Number length 10 Sum of Digits 43 Digital Root 7
Name
one billion nine hundred eighty-one million eight hundred thirty-one thousand five hundred seven
Scientific notation
1.981831507 × 10^9
Engineering notation
1.981831507 × 10^9
Prime Factorization
1981831507
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
1981831507 Product of the distinct prime numbers
The prime factorization of 1981831507 is 1981831507.
Since it has a total of 1 prime factors.
2 , 2 , 23 , 45 , 805 , 931 , 3897 , 2757 , 88960 , 42358 , 141651 , 160568 , 1296406 , 5722001 , 48296989 , 99236014 , 900125258 , 660954275 , 740127586 , 724265456
n×2
3963663014
n×3
5945494521
n×4
7927326028
n×5
9909157535
n÷2
990915753.5
n÷3
660610502.33333
n÷3
495457876.75
n÷5
396366301.4
n2
3927656122137891049
n3
7.7839526515143E+27
n4
1.5426482613767E+37
n5
3.0572689286152E+46
2 √n44517.766195082
3 √n1256.0942942023
4 √n210.99233681601
5 √n72.345803709534
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
1981831508 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
990915754 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
44517.766206314 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999989908 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981831507 can be divided by 2 positive divisors.
The sum of these divisors (counting 1981831507) is 1981831508, the average is 990915754.
Base
System
Value
2
Binary
1110110001000000101100101010011
3
Ternary
12010010011110201221
4
Quaternary
1312020011211103
5
Quinary
13024322102012
6
Senary
524353305511
8
Octal
16610054523
10
Decimal
1981831507
12
Duodecimal
473865297
16
Hexadecimal
76205953
20
Vigesimal
1aj68if7
36
Base36
wrxiz7
md5
bdbee8ab9f0a4707e1980e45c3aec074
sha1
98465c986eee563baa8f6ba2c799bc7a4b7e5223
sha256
8a6ca9444ec9a4f6e8d2482f9e43d21bc9a9d492a6c57d3f449971215381bb10
sha512
754a338d74d5cee73cfe6ca92d17f2cc20d4e907f5e7f010f6754993d2ccad4c7cca92e6f5f9de6b9b86cbe14ccd5647714513d135a490b16b2290aeb9d3c3cb
ripemd-160
55e825ff10a9378f96f7caed8939d0960f264078
Diameter
3963663014
Circumference
12452214606.088
Area
1.2339095619135E+19
Volume
3.2605344621184E+28
Surface area
4.9356382476541E+19
Circumference
12452214606.088
Perimeter
7927326028
Area
3927656122137891049
Diagonal
2802732995.5377
Surface area
2.3565936732827E+19
Volume
7.7839526515143E+27
Space diagonal
3432632862.1648
Perimeter
5945494521
Area
1.7007249895504E+18
Altitude
1716316431.0824
Surface area
1.7007249895504E+18
Volume
9.173476173868E+26
Height
934244331.8459