1999648981 is an odd 10-digits composite number following 1999648980
and preceding 1999648982 . In scientific notation, it is written as 1.999648981 × 10^9.
The sum of its digits is 64. It has a total of 4 prime factors and 16 positive divisors.
There are 1777375600 positive integers (up to 1999648981) that are relatively prime to 1999648981.
1999648981 has 16 divisors, whose sum is 2230115328
The reverse of 1999648981 is 1898469991
Previous prime number is 1931
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 64
Digital Root 1
Name
one billion nine hundred ninety-nine million six hundred forty-eight thousand nine hundred eighty-one
Scientific notation
1.999648981 × 10^9
Engineering notation
1.999648981 × 10^9
Prime Factorization
11 × 47 × 1931 × 2003
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1999648981
Product of the distinct prime numbers
The prime factorization of 1999648981 is 11 × 47 × 1931 × 2003.
Since it has a total of 4 prime factors.
3 , 10 , 3 , 95 , 620 , 118 , 6162 , 130 , 35467 , 49870 , 746469 , 521479 , 8149799 , 3379764 , 80341073 , 28104364 , 482966894 , 866831488 , 4637358893 , 1911388459
n×2
3999297962
n×3
5998946943
n×4
7998595924
n×5
9998244905
n÷2
999824490.5
n÷3
666549660.33333
n÷3
499912245.25
n÷5
399929796.2
n2
3998596047214338361
n3
7.9957885112428E+27
n4
1.5988770348798E+37
n5
3.1971928335417E+46
2 √n
44717.434866056
3 √n
1259.8473362111
4 √n
211.46497314226
5 √n
72.475422074817
1 , 11 , 47 , 517 , 1931 , 2003 , 21241 , 22033 , 90757 , 94141 , 998327 , 1035551 , 3867793 , 42545723 , 181786271 , 1999648981
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
-1999648980
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 1999648981 can be divided by 16 positive divisors.
The sum of these divisors (counting 1999648981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111001100000011100011010101
3
Ternary
12011100200200201101
4
Quaternary
1313030003203111
5
Quinary
13043402231411
6
Senary
530231230101
8
Octal
16714034325
10
Decimal
1999648981
12
Duodecimal
479818331
16
Hexadecimal
773038d5
20
Vigesimal
1b4hg291
36
Base36
x2jf11
md5
05e89e4005703f90ef83fe533809d1d5
sha1
858b3da7a0470952b3eb2aa9c2fec7799073dc8e
sha256
76de1140ece19084e7d151413523ee476e1695a68cdf83e0df273dbd96957eaa
sha512
1e3df18f5edea0986ccbfb63b2abbabc33aef8de924e84a324fed0f592565477c42cc1e3ea61f0ce9944b3aaf3b88488dfd86c715c395aba813069e1fde1eb27
ripemd-160
786e37696970dc7a2ae2b844f0a0152c1ab8c7b9
Diameter
3999297962
Circumference
12564165096.936
Area
1.2561959966602E+19
Volume
3.3492680595437E+28
Surface area
5.0247839866407E+19
Circumference
12564165096.936
Perimeter
7998595924
Area
3998596047214338361
Diagonal
2827930708.9157
Surface area
2.3991576283286E+19
Volume
7.9957885112428E+27
Space diagonal
3463493632.3953
Perimeter
5998946943
Area
1.7314428781798E+18
Altitude
1731746816.1977
Surface area
1.7314428781798E+18
Volume
9.4231271287221E+26
Height
942643569.63858