1981053906 is an even 10-digits composite number following 1981053905
and preceding 1981053907 . In scientific notation, it is written as 1.981053906 × 10^9.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 609241920 positive integers (up to 1981053906) that are relatively prime to 1981053906.
1981053906 has 16 divisors, whose sum is 3049341120
The reverse of 1981053906 is 6093501891
Previous prime number is 2381
Is Prime? no
Number parity even
Number length 10
Sum of Digits 42
Digital Root 6
Name
one billion nine hundred eighty-one million fifty-three thousand nine hundred six
Scientific notation
1.981053906 × 10^9
Engineering notation
1.981053906 × 10^9
Prime Factorization
2 × 39 × 2381 × 10667
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981053906
Product of the distinct prime numbers
The prime factorization of 1981053906 is 2 × 39 × 2381 × 10667.
Since it has a total of 4 prime factors.
6 , 9 , 28 , 16 , 384 , 667 , 7061 , 7491 , 58720 , 19077 , 995078 , 3232 , 4211413 , 2477820 , 58689629 , 43591055 , 349613622 , 212653669 , 2780739979 , 8505650698
n×2
3962107812
n×3
5943161718
n×4
7924215624
n×5
9905269530
n÷2
990526953
n÷3
660351302
n÷3
495263476.5
n÷5
396210781.2
n2
3924574578477856836
n3
7.7747937980819E+27
n4
1.5402285622035E+37
n5
3.0512758092859E+46
2 √n
44509.031735143
3 √n
1255.9299902996
4 √n
210.97163727654
5 √n
72.340125628389
1 , 2 , 39 , 78 , 2381 , 4762 , 10667 , 21334 , 92859 , 185718 , 416013 , 832026 , 25398127 , 50796254 , 990526953 , 1981053906
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
-1981053905
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 1981053906 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981053906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000101000111101111010010
3
Ternary
12010001200222001220
4
Quaternary
1312011013233102
5
Quinary
13024122211111
6
Senary
524324505510
8
Octal
16605075722
10
Decimal
1981053906
12
Duodecimal
47354b296
16
Hexadecimal
76147bd2
20
Vigesimal
1aj1bef6
36
Base36
wrguz6
md5
014b6df3279889e5ecc1734f102b7fed
sha1
9e249dab052b1ca477354e68bd70674d97f8f586
sha256
4c1b291a0a3f30a53dd7c4dd3ce36dcaa98051858d2bb8b7e27aabe22c997c1e
sha512
838781a057a0521bfe02aebd890552e142deff12e18fd06daf7f6c3b0ad84403e3441f00c8a809d809fa1882f94758a08a0140c2ab7d1a50270b9f29392d0800
ripemd-160
caaa366978bb442dc7d8f680a5cd69827bd12378
Diameter
3962107812
Circumference
12447328794.91
Area
1.2329414664211E+19
Volume
3.2566980105639E+28
Surface area
4.9317658656845E+19
Circumference
12447328794.91
Perimeter
7924215624
Area
3924574578477856836
Diagonal
2801633301.6574
Surface area
2.3547447470867E+19
Volume
7.7747937980819E+27
Space diagonal
3431286017.7248
Perimeter
5943161718
Area
1.6993906420042E+18
Altitude
1715643008.8624
Surface area
1.6993906420042E+18
Volume
9.1626823615847E+26
Height
933877767.21913