1638998730 is an even 10-digits composite number following 1638998729
and preceding 1638998731 . In scientific notation, it is written as 1.638998730 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 411356160 positive integers (up to 1638998730) that are relatively prime to 1638998730.
1638998730 has 16 divisors, whose sum is 2660965128
The reverse of 1638998730 is 0378998361
Previous prime number is 17
Is Prime? no Number parity even Number length 10 Sum of Digits 54 Digital Root 9
Name
one billion six hundred thirty-eight million nine hundred ninety-eight thousand seven hundred thirty
Scientific notation
1.638998730 × 10^9
Engineering notation
1.638998730 × 10^9
Prime Factorization
2 × 45 × 17 × 1071241
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1638998730 Product of the distinct prime numbers
The prime factorization of 1638998730 is 2 × 45 × 17 × 1071241.
Since it has a total of 4 prime factors.
8 , 10 , 76 , 76 , 961 , 487 , 2180 , 2428 , 79626 , 92803 , 645258 , 209798 , 6266204 , 367468 , 12003744 , 98919709 , 24697337 , 885839921 , 3180505344 , 2693244962
n×2
3277997460
n×3
4916996190
n×4
6555994920
n×5
8194993650
n÷2
819499365
n÷3
546332910
n÷3
409749682.5
n÷5
327799746
n2
2686316836941612900
n3
4.4028698841249E+27
n4
7.216298148436E+36
n5
1.1827503500588E+46
2 √n40484.549275001
3 √n1179.0336649522
4 √n201.20772667818
5 √n69.649134405153
1 , 2 , 17 , 34 , 45 , 90 , 765 , 1530 , 1071241 , 2142482 , 18211097 , 36422194 , 48205845 , 96411690 , 819499365 , 1638998730
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
-1638998729 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 1638998730 can be divided by 16 positive divisors.
The sum of these divisors (counting 1638998730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001101100010010001011001010
3
Ternary
11020020001202120200
4
Quaternary
1201230102023022
5
Quinary
11324040424410
6
Senary
430345233030
8
Octal
14154221312
10
Decimal
1638998730
12
Duodecimal
398a92776
16
Hexadecimal
61b122ca
20
Vigesimal
15c3egga
36
Base36
r3tfii
md5
e47d9732843ff5166857dcb64f8a2498
sha1
5898bf45301b40e186e950d911130f6a360a6ed6
sha256
930a221dd55c6ec5b8463af2c7aef8fcbc74f49efb122b39b37373672d9729e3
sha512
c7b1b6d0fc58939ba0f1c5d3533850a1dff46d57e63e7f960c2270c17874efbed6be452efb25caa53ca5aa0400313f8c71ac87ac5498848f6b3473098fc25601
ripemd-160
0a299f3323e85fe71d7dc9721a1d7fb1a8c8665c
Diameter
3277997460
Circumference
10298132738.822
Area
8.4393132401503E+18
Volume
1.8442698243571E+28
Surface area
3.3757252960601E+19
Circumference
10298132738.822
Perimeter
6555994920
Area
2686316836941612900
Diagonal
2317894232.6783
Surface area
1.611790102165E+19
Volume
4.4028698841249E+27
Space diagonal
2838829073.9009
Perimeter
4916996190
Area
1.1632093117026E+18
Altitude
1419414536.9504
Surface area
1.1632093117026E+18
Volume
5.1888319195779E+26
Height
772631410.89276