1220781369 is an odd 10-digits composite number following 1220781368
and preceding 1220781370 . In scientific notation, it is written as 1.220781369 × 10^9.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 770109120 positive integers (up to 1220781369) that are relatively prime to 1220781369.
1220781369 has 16 divisors, whose sum is 1715401280
The reverse of 1220781369 is 9631870221
Previous prime number is 877
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 39
Digital Root 3
Name
one billion two hundred twenty million seven hundred eighty-one thousand three hundred sixty-nine
Scientific notation
1.220781369 × 10^9
Engineering notation
1.220781369 × 10^9
Prime Factorization
19 × 3 × 877 × 24421
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1220781369
Product of the distinct prime numbers
The prime factorization of 1220781369 is 19 × 3 × 877 × 24421.
Since it has a total of 4 prime factors.
6 , 3 , 62 , 63 , 224 , 502 , 1999 , 9896 , 76237 , 21278 , 227238 , 541194 , 7820246 , 7141521 , 42160645 , 80887662 , 776148700 , 827345346 , 4477168241 , 9873577386
n×2
2441562738
n×3
3662344107
n×4
4883125476
n×5
6103906845
n÷2
610390684.5
n÷3
406927123
n÷3
305195342.25
n÷5
244156273.8
n2
1490307150897514161
n3
1.8193392039032E+27
n4
2.2210154040163E+36
n5
2.7113742254851E+45
2 √n
34939.68186747
3 √n
1068.7578005928
4 √n
186.92159283365
5 √n
65.664036857643
1 , 3 , 19 , 57 , 877 , 2631 , 16663 , 24421 , 49989 , 73263 , 463999 , 1391997 , 21417217 , 64251651 , 406927123 , 1220781369
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
-1220781368
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 1220781369 can be divided by 16 positive divisors.
The sum of these divisors (counting 1220781369) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001000110000111010010100111001
3
Ternary
10011002010010012210
4
Quaternary
1020300322110321
5
Quinary
10000010000434
6
Senary
321045325333
8
Octal
11060722471
10
Decimal
1220781369
12
Duodecimal
2a0a06849
16
Hexadecimal
48c3a539
20
Vigesimal
j19hd89
36
Base36
k6tkxl
md5
cb23eb8c05bbdc42c13cc3f7b7d03518
sha1
dc5060a6ce5ba8fe5118fcaefadc95db7dc99e39
sha256
22b6458f8f1f567a76928883a49466ee39005705dbd43bb87baaadfd6a77f0cd
sha512
6222568cc6efbe8a5cc6153147fcf66dca89d34ca9f02b5f36fbdda546769cfb24a1de381662314a953e9b85229a74713fc2bba18142eb99c625c76961ac53f5
ripemd-160
e4e2ca66e72cefa2cf1c07ea21ec689b8bc69aa8
Diameter
2441562738
Circumference
7670395560.9794
Area
4.681937996852E+18
Volume
7.6208302364934E+27
Surface area
1.8727751987408E+19
Circumference
7670395560.9794
Perimeter
4883125476
Area
1490307150897514161
Diagonal
1726445568.7322
Surface area
8941842905385084966
Volume
1.8193392039032E+27
Space diagonal
2114455356.0415
Perimeter
3662344107
Area
6.4532192605943E+17
Altitude
1057227678.0207
Surface area
6.4532192605943E+17
Volume
2.1441118139308E+26
Height
575481856.24406