1638864085 is an odd 10-digits composite number following 1638864084
and preceding 1638864086 . In scientific notation, it is written as 1.638864085 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 1294494864 positive integers (up to 1638864085) that are relatively prime to 1638864085.
1638864085 has 8 divisors, whose sum is 1991531520
The reverse of 1638864085 is 5804688361
Previous prime number is 79
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion six hundred thirty-eight million eight hundred sixty-four thousand eighty-five
Scientific notation
1.638864085 × 10^9
Engineering notation
1.638864085 × 10^9
Prime Factorization
5 × 79 × 4149023
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1638864085 Product of the distinct prime numbers
The prime factorization of 1638864085 is 5 × 79 × 4149023.
Since it has a total of 3 prime factors.
4 , 1 , 92 , 25 , 223 , 539 , 1289 , 137 , 75359 , 75752 , 848557 , 424017 , 2930344 , 2860269 , 71543654 , 49091772 , 469599624 , 781172344 , 4505550998 , 7725745546
n×2
3277728170
n×3
4916592255
n×4
6555456340
n×5
8194320425
n÷2
819432042.5
n÷3
546288028.33333
n÷3
409716021.25
n÷5
327772817
n2
2685875489102887225
n3
4.4017848758725E+27
n4
7.2139271429637E+36
n5
1.182264610641E+46
2 √n40482.886322494
3 √n1179.0013778954
4 √n201.20359420869
5 √n69.647990021609
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1638864084 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1638864085 can be divided by 8 positive divisors.
The sum of these divisors (counting 1638864085) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100001101011110001010011010101
3
Ternary
11020012210220212211
4
Quaternary
1201223301103111
5
Quinary
11324022122320
6
Senary
430342313421
8
Octal
14153612325
10
Decimal
1638864085
12
Duodecimal
398a28871
16
Hexadecimal
61af14d5
20
Vigesimal
15c2i045
36
Base36
r3qjmd
md5
cbc1d4fc68b2c4edfdb709dc4ed6733c
sha1
1374e96d07e25240ec94c278b48f0ea13d433ad8
sha256
b7452543afa2ac222823d647cf1edc96ee393fa90e20a3dec8258c8a0f3264c2
sha512
91823592485338157b881d68162d70b232bda1df40165130515bfe699c4c016aef58d9df609986fefc93825706724dc50d55f2764620e03fc468f45d7420e0d5
ripemd-160
3e44b937cb7360c34af43d240e2d35f526c6ed54
Diameter
3277728170
Circumference
10297286739.336
Area
8.4379267050225E+18
Volume
1.8438153371632E+28
Surface area
3.375170682009E+19
Circumference
10297286739.336
Perimeter
6555456340
Area
2685875489102887225
Diagonal
2317703815.8932
Surface area
1.6115252934617E+19
Volume
4.4017848758725E+27
Space diagonal
2838595861.9199
Perimeter
4916592255
Area
1.1630182024825E+18
Altitude
1419297930.9599
Surface area
1.1630182024825E+18
Volume
5.1875532250898E+26
Height
772567938.63106