1216597987 is an odd 10-digits composite number following 1216597986
and preceding 1216597988 . In scientific notation, it is written as 1.216597987 × 10^9.
The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors.
There are 1028008800 positive integers (up to 1216597987) that are relatively prime to 1216597987.
1216597987 has 16 divisors, whose sum is 1423422720
The reverse of 1216597987 is 7897956121
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion two hundred sixteen million five hundred ninety-seven thousand nine hundred eighty-seven
Scientific notation
1.216597987 × 10^9
Engineering notation
1.216597987 × 10^9
Prime Factorization
53 × 11 × 19 × 109831
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1216597987
Product of the distinct prime numbers
The prime factorization of 1216597987 is 53 × 11 × 19 × 109831.
Since it has a total of 4 prime factors.
5 , 4 , 79 , 77 , 151 , 62 , 5612 , 4416 , 83618 , 69363 , 910814 , 124857 , 77757 , 42303 , 99473478 , 93548797 , 260059675 , 686790563 , 7517848342 , 865779875
n×2
2433195974
n×3
3649793961
n×4
4866391948
n×5
6082989935
n÷2
608298993.5
n÷3
405532662.33333
n÷3
304149496.75
n÷5
243319597.4
n2
1480110661972452169
n3
1.8006996518929E+27
n4
2.1907275716845E+36
n5
2.6652347537768E+45
2 √n
34879.76472111
3 √n
1067.5355945768
4 √n
186.76125058778
5 √n
65.618971448336
1 , 11 , 19 , 53 , 209 , 583 , 1007 , 11077 , 109831 , 1208141 , 2086789 , 5821043 , 22954679 , 64031473 , 110599817 , 1216597987
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
-1216597986
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 1216597987 can be divided by 16 positive divisors.
The sum of these divisors (counting 1216597987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001000100000111100111111100011
3
Ternary
10010210020120200201
4
Quaternary
1020200330333203
5
Quinary
4442422113422
6
Senary
320415530031
8
Octal
11040747743
10
Decimal
1216597987
12
Duodecimal
29b529917
16
Hexadecimal
4883cfe3
20
Vigesimal
j03eej7
36
Base36
k4bx0j
md5
7ae0131c3643ece510ab395fe7029510
sha1
6940df7293a88f98ece65ead0ccb1743a0999e28
sha256
59dafafe72a32b292777d881994e3b7152e33d47e05e398b3484c02493fc936c
sha512
6ec9a1cd00fa9ed515afe636c9f2b5677d39c7c0dcf46ecb954dbf84b98ad29a9a0d83ce1627bbdec62bf734a565a75c56b5918d98ca0055415aa5664c5473f1
ripemd-160
cab2e4f8a2b23406fe374474ab29941fc0485ede
Diameter
2433195974
Circumference
7644110596.6627
Area
4.6499047821526E+18
Volume
7.5427530636113E+27
Surface area
1.859961912861E+19
Circumference
7644110596.6627
Perimeter
4866391948
Area
1480110661972452169
Diagonal
1720529373.1712
Surface area
8880663971834713014
Volume
1.8006996518929E+27
Space diagonal
2107209525.87
Perimeter
3649793961
Area
6.4090671684017E+17
Altitude
1053604762.935
Surface area
6.4090671684017E+17
Volume
2.1221448912229E+26
Height
573509791.05707