1388761218 is an even 10-digits composite number following 1388761217
and preceding 1388761219 . In scientific notation, it is written as 1.388761218 × 10^9.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 427310208 positive integers (up to 1388761218) that are relatively prime to 1388761218.
1388761218 has 24 divisors, whose sum is 2506349700
The reverse of 1388761218 is 8121678831
Previous prime number is 13
Is Prime? no
Number parity even
Number length 10
Sum of Digits 45
Digital Root 9
Name
one billion three hundred eighty-eight million seven hundred sixty-one thousand two hundred eighteen
Scientific notation
1.388761218 × 10^9
Engineering notation
1.388761218 × 10^9
Prime Factorization
2 × 13 × 9 × 13 × 456529
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
106827786
Product of the distinct prime numbers
The prime factorization of 1388761218 is 2 × 13 × 9 × 13 × 456529.
Since it has a total of 5 prime factors.
5 , 2 , 38 , 79 , 457 , 932 , 230 , 2830 , 57043 , 23612 , 977171 , 379746 , 3694320 , 8846459 , 31519290 , 12993041 , 234156550 , 876328509 , 5274521586 , 6123581586
n×2
2777522436
n×3
4166283654
n×4
5555044872
n×5
6943806090
n÷2
694380609
n÷3
462920406
n÷3
347190304.5
n÷5
277752243.6
n2
1928657720620843524
n3
2.6784450451945E+27
n4
3.7197206033104E+36
n5
5.165803715673E+45
2 √n
37266.086700913
3 √n
1115.6873955828
4 √n
193.04426098932
5 √n
67.379148143779
1 , 2 , 9 , 13 , 18 , 26 , 117 , 169 , 234 , 338 , 1521 , 3042 , 456529 , 913058 , 4108761 , 5934877 , 8217522 , 11869754 , 53413893 , 77153401 , 106827786 , 154306802 , 694380609 , 1388761218
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1388761217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388761218 can be divided by 24 positive divisors.
The sum of these divisors (counting 1388761218) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010010110001101101000010000010
3
Ternary
10120210012101020200
4
Quaternary
1102301231002002
5
Quinary
10321010324333
6
Senary
345445550030
8
Octal
12261550202
10
Decimal
1388761218
12
Duodecimal
329115316
16
Hexadecimal
52c6d082
20
Vigesimal
11djf30i
36
Base36
mytz0i
md5
57986237f503a38ec1026cc5455034e2
sha1
c93b5af64054e3e2ba5168046ac2146776517251
sha256
aadd84cded16eab0fe805be6f713538e881bc6d259159ee1d540e783a0e73175
sha512
8a57b3b190104cb4a644d34c7209f338390fac965001c2abd0ee4aaa096bd428ef3f48706b4deec942922e54e422a0822a8f802ac6e07d9514c4c3222ad0b10f
ripemd-160
e6018bb2e797de11ed6df14ab59fa34a75dbb542
Diameter
2777522436
Circumference
8725844080.1184
Area
6.0590569263917E+18
Volume
1.1219444369369E+28
Surface area
2.4236227705567E+19
Circumference
8725844080.1184
Perimeter
5555044872
Area
1928657720620843524
Diagonal
1964004949.3934
Surface area
1.1571946323725E+19
Volume
2.6784450451945E+27
Space diagonal
2405404989.1572
Perimeter
4166283654
Area
8.3513329063132E+17
Altitude
1202702494.5786
Surface area
8.3513329063132E+17
Volume
3.1565777574876E+26
Height
654668316.46446