1388797861 is an odd 10-digits composite number following 1388797860
and preceding 1388797862 . In scientific notation, it is written as 1.388797861 × 10^9.
The sum of its digits is 58. It has a total of 3 prime factors and 8 positive divisors.
There are 1221816000 positive integers (up to 1388797861) that are relatively prime to 1388797861.
1388797861 has 8 divisors, whose sum is 1563925248
The reverse of 1388797861 is 1687978831
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 58
Digital Root 4
Name
one billion three hundred eighty-eight million seven hundred ninety-seven thousand eight hundred sixty-one
Scientific notation
1.388797861 × 10^9
Engineering notation
1.388797861 × 10^9
Prime Factorization
11 × 31 × 4072721
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1388797861
Product of the distinct prime numbers
The prime factorization of 1388797861 is 11 × 31 × 4072721.
Since it has a total of 3 prime factors.
3 , 10 , 5 , 69 , 569 , 881 , 9346 , 5703 , 32337 , 1722 , 347857 , 404433 , 4211056 , 3648085 , 72931792 , 20631232 , 306147931 , 266645560 , 6413386774 , 5483244590
n×2
2777595722
n×3
4166393583
n×4
5555191444
n×5
6943989305
n÷2
694398930.5
n÷3
462932620.33333
n÷3
347199465.25
n÷5
277759572.2
n2
1928759498718175321
n3
2.6786570662032E+27
n4
3.7201132038956E+36
n5
5.166485260248E+45
2 √n
37266.578337701
3 √n
1115.6972081105
4 √n
193.04553436353
5 √n
67.379503704985
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1388797860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388797861 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388797861) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110001110101111110100101
3
Ternary
10120210021020111211
4
Quaternary
1102301311332211
5
Quinary
10321013012421
6
Senary
345450431421
8
Octal
12261657645
10
Decimal
1388797861
12
Duodecimal
329132571
16
Hexadecimal
52c75fa5
20
Vigesimal
11djjed1
36
Base36
myurad
md5
51786674ee3958f0695f6704eddb078f
sha1
1ebb5a87592150f2c10a72ac7f50a3b6cfa587da
sha256
641bee4c05347146dfcea0b4a13f4876f67277a3c01b577c0b35912822ad0f0b
sha512
7ce05a9fbbfb52215c9087b9ccc67f2ddaf52b58ccad604e441a9c17fe9796ff3b6abcdc1a3d21349bb1f43eb21f561572af39bb1746293ac30e2bd1451f6c6e
ripemd-160
f4109e0eb6ecf488df480911be25f9f17b5de979
Diameter
2777595722
Circumference
8726074314.8776
Area
6.0593766717146E+18
Volume
1.1220332480894E+28
Surface area
2.4237506686858E+19
Circumference
8726074314.8776
Perimeter
5555191444
Area
1928759498718175321
Diagonal
1964056770.4209
Surface area
1.1572556992309E+19
Volume
2.6786570662032E+27
Space diagonal
2405468456.695
Perimeter
4166393583
Area
8.3517736184024E+17
Altitude
1202734228.3475
Surface area
8.3517736184024E+17
Volume
3.1568276266426E+26
Height
654685590.14031