1216409865 is an odd 10-digits composite number following 1216409864
and preceding 1216409866 . In scientific notation, it is written as 1.216409865 × 10^9.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 588696000 positive integers (up to 1216409865) that are relatively prime to 1216409865.
1216409865 has 16 divisors, whose sum is 1418047488
The reverse of 1216409865 is 5689046121
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 42
Digital Root 6
Name
one billion two hundred sixteen million four hundred nine thousand eight hundred sixty-five
Scientific notation
1.216409865 × 10^9
Engineering notation
1.216409865 × 10^9
Prime Factorization
15 × 12911 × 11 × 571
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1216409865
Product of the distinct prime numbers
The prime factorization of 1216409865 is 15 × 12911 × 11 × 571.
Since it has a total of 4 prime factors.
2 , 8 , 40 , 18 , 886 , 827 , 1147 , 3667 , 27463 , 95517 , 348502 , 751466 , 9012864 , 7515931 , 97123728 , 86492360 , 716944254 , 815153682 , 1587556543 , 4511938366
n×2
2432819730
n×3
3649229595
n×4
4865639460
n×5
6082049325
n÷2
608204932.5
n÷3
405469955
n÷3
304102466.25
n÷5
243281973
n2
1479652959669318225
n3
1.7998644569182E+27
n4
2.1893728810582E+36
n5
2.6631747706826E+45
2 √n
34877.067895682
3 √n
1067.4805675574
4 √n
186.75403046703
5 √n
65.616941996393
1 , 11 , 15 , 165 , 571 , 6281 , 8565 , 12911 , 94215 , 142021 , 193665 , 2130315 , 7372181 , 81093991 , 110582715 , 1216409865
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
-1216409864
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 1216409865 can be divided by 16 positive divisors.
The sum of these divisors (counting 1216409865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001000100000001111000100001001
3
Ternary
10010202220000122020
4
Quaternary
1020200033010021
5
Quinary
4442400103430
6
Senary
320411515053
8
Octal
11040170411
10
Decimal
1216409865
12
Duodecimal
29b458a89
16
Hexadecimal
4880f109
20
Vigesimal
j02b4d5
36
Base36
k47vux
md5
db2157ccdc119cf7753c3b7e21fad4ca
sha1
7fa42a750906678639fdd68ccd02f5dce368703f
sha256
6cd61b7fff6111b40115a5e980ace66d70f22086ba91f8bd86118fd3a415020c
sha512
39becdde0b058d6686aad93200baff8a6948160879d043527a5fc1558fe304b0782d0d284e7387b5030bd68377d1bec726722b8757de5cc9a8bac04833397ecf
ripemd-160
a0039427954f253d79861e81f720e4b3f4efbab6
Diameter
2432819730
Circumference
7642928591.2763
Area
4.6484668679595E+18
Volume
7.5392546070822E+27
Surface area
1.8593867471838E+19
Circumference
7642928591.2763
Perimeter
4865639460
Area
1479652959669318225
Diagonal
1720263328.4874
Surface area
8877917758015909350
Volume
1.7998644569182E+27
Space diagonal
2106883689.008
Perimeter
3649229595
Area
6.4070852592923E+17
Altitude
1053441844.504
Surface area
6.4070852592923E+17
Volume
2.1211606045058E+26
Height
573421109.49581