1639137981 is an odd 10-digits composite number following 1639137980
and preceding 1639137982 . In scientific notation, it is written as 1.639137981 × 10^9.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 1005129216 positive integers (up to 1639137981) that are relatively prime to 1639137981.
1639137981 has 16 divisors, whose sum is 2361966656
The reverse of 1639137981 is 1897319361
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 48
Digital Root 3
Name
one billion six hundred thirty-nine million one hundred thirty-seven thousand nine hundred eighty-one
Scientific notation
1.639137981 × 10^9
Engineering notation
1.639137981 × 10^9
Prime Factorization
3 × 13 × 283 × 148513
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1639137981
Product of the distinct prime numbers
The prime factorization of 1639137981 is 3 × 13 × 283 × 148513.
Since it has a total of 4 prime factors.
8 , 6 , 2 , 34 , 703 , 286 , 2335 , 4538 , 26507 , 76377 , 344355 , 540252 , 9605091 , 468132 , 62818147 , 77959737 , 234943563 , 172661145 , 1760869680 , 1602737205
n×2
3278275962
n×3
4917413943
n×4
6556551924
n×5
8195689905
n÷2
819568990.5
n÷3
546379327
n÷3
409784495.25
n÷5
327827596.2
n2
2686773320756756361
n3
4.4039921963899E+27
n4
7.2187508771303E+36
n5
1.1832528738081E+46
2 √n
40486.269042726
3 √n
1179.0670546399
4 √n
201.21200024533
5 √n
69.650317857202
1 , 3 , 13 , 39 , 283 , 849 , 3679 , 11037 , 148513 , 445539 , 1930669 , 5792007 , 42029179 , 126087537 , 546379327 , 1639137981
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
-1639137980
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 1639137981 can be divided by 16 positive divisors.
The sum of these divisors (counting 1639137981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001101100110100001010111101
3
Ternary
11020020022211121010
4
Quaternary
1201230310022331
5
Quinary
11324104403411
6
Senary
430352225433
8
Octal
14154641275
10
Decimal
1639137981
12
Duodecimal
398b3b279
16
Hexadecimal
61b342bd
20
Vigesimal
15c4c4j1
36
Base36
r3weyl
md5
4eafcf5ca7be87c4593eca3a9e135bf0
sha1
0fba12c4b2ce87df29bad6a4484ee06707be3ffe
sha256
a420c89cc2833bd2e79eae30bc011a5859401f5d9a6dbc8dcdbbaadb8e0dc060
sha512
a8b9cccf0a9bc7a652f62c7601554979f98783c937354453315d9de2b1c5a307215c0d9263f84e9786164cc1d8ffec677869aa9ebfe1d0cf638356707a27cbbb
ripemd-160
8bb06cf6ba8e6e4ecf5e34a9771e346ca146b8a3
Diameter
3278275962
Circumference
10299007678.659
Area
8.4407473263505E+18
Volume
1.8447399374194E+28
Surface area
3.3762989305402E+19
Circumference
10299007678.659
Perimeter
6556551924
Area
2686773320756756361
Diagonal
2318091163.3311
Surface area
1.6120639924541E+19
Volume
4.4039921963899E+27
Space diagonal
2839070263.7079
Perimeter
4917413943
Area
1.1634069749928E+18
Altitude
1419535131.8539
Surface area
1.1634069749928E+18
Volume
5.1901545772666E+26
Height
772697054.44368