1388793721 is an odd 10-digits composite number following 1388793720
and preceding 1388793722 . In scientific notation, it is written as 1.388793721 × 10^9.
The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors.
There are 1189913928 positive integers (up to 1388793721) that are relatively prime to 1388793721.
1388793721 has 12 divisors, whose sum is 1616188032
The reverse of 1388793721 is 1273978831
Previous prime number is 7823
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion three hundred eighty-eight million seven hundred ninety-three thousand seven hundred twenty-one
Scientific notation
1.388793721 × 10^9
Engineering notation
1.388793721 × 10^9
Prime Factorization
7 × 7 × 7823 × 3623
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
198399103 Product of the distinct prime numbers
The prime factorization of 1388793721 is 7 × 7 × 7823 × 3623.
Since it has a total of 4 prime factors.
3 , 10 , 25 , 43 , 738 , 48 , 3437 , 5120 , 59532 , 74319 , 882672 , 72728 , 6891111 , 6461402 , 32823803 , 3688967 , 274453758 , 39341834 , 8406982016 , 5783706524
n×2
2777587442
n×3
4166381163
n×4
5555174884
n×5
6943968605
n÷2
694396860.5
n÷3
462931240.33333
n÷3
347198430.25
n÷5
277758744.2
n2
1928747999489025841
n3
2.6786331110817E+27
n4
3.7200688455329E+36
n5
5.1664082543638E+45
2 √n37266.522791911
3 √n1115.69609948
4 √n193.04539049641
5 √n67.37946353334
1 , 7 , 49 , 3623 , 7823 , 25361 , 54761 , 177527 , 383327 , 28342729 , 198399103 , 1388793721
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1388793720 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388793721 can be divided by 12 positive divisors.
The sum of these divisors (counting 1388793721) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010110001110100111101111001
3
Ternary
10120210021000211111
4
Quaternary
1102301310331321
5
Quinary
10321012344341
6
Senary
345450400321
8
Octal
12261647571
10
Decimal
1388793721
12
Duodecimal
3291300a1
16
Hexadecimal
52c74f79
20
Vigesimal
11djj461
36
Base36
myuo3d
md5
810f4d5dcdd84059020c0b0ed79caa23
sha1
e627b3237a2bdeb70bb0a8dc0ccf8b65f112f99a
sha256
a43feab9b0c416229b8cfa7df1437aa8fd8449b7421d7e21cfc50f7fb605fb3b
sha512
37ca618ddf79bb8d76def3c267c355d58ce941362d1a3470df6f25e34ac8ead60e1ddc28840350b4099cf402d009fe35f7d1974515f46deda670c4b3fea64d4f
ripemd-160
7e11e09e4ad3fc2a2ca834372022e29a7771c0a9
Diameter
2777587442
Circumference
8726048302.4905
Area
6.0593405458207E+18
Volume
1.1220232137915E+28
Surface area
2.4237362183283E+19
Circumference
8726048302.4905
Perimeter
5555174884
Area
1928747999489025841
Diagonal
1964050915.5768
Surface area
1.1572487996934E+19
Volume
2.6786331110817E+27
Space diagonal
2405461286.0046
Perimeter
4166381163
Area
8.3517238252796E+17
Altitude
1202730643.0023
Surface area
8.3517238252796E+17
Volume
3.1567993952611E+26
Height
654683638.5256