1388891380 is an even 10-digits composite number following 1388891379
and preceding 1388891381 . In scientific notation, it is written as 1.388891380 × 10^9.
The sum of its digits is 49. It has a total of 5 prime factors and 24 positive divisors.
There are 554798880 positive integers (up to 1388891380) that are relatively prime to 1388891380.
1388891380 has 24 divisors, whose sum is 2920649760
The reverse of 1388891380 is 0831988831
Previous prime number is 739
Is Prime? no
Number parity even
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion three hundred eighty-eight million eight hundred ninety-one thousand three hundred eighty
Scientific notation
1.388891380 × 10^9
Engineering notation
1.388891380 × 10^9
Prime Factorization
2 × 2 × 5 × 739 × 93971
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
694445690
Product of the distinct prime numbers
The prime factorization of 1388891380 is 2 × 2 × 5 × 739 × 93971.
Since it has a total of 5 prime factors.
6 , 1 , 30 , 11 , 652 , 632 , 212 , 6823 , 62769 , 63240 , 552883 , 946318 , 7267342 , 5206358 , 46211991 , 18849250 , 95016431 , 100975074 , 1918949424 , 1864164904
n×2
2777782760
n×3
4166674140
n×4
5555565520
n×5
6944456900
n÷2
694445690
n÷3
462963793.33333
n÷3
347222845
n÷5
277778276
n2
1929019265438304400
n3
2.6791982296212E+27
n4
3.7211153264321E+36
n5
5.1682250008675E+45
2 √n
37267.833046744
3 √n
1115.7222505226
4 √n
193.04878411102
5 √n
67.380411122006
1 , 2 , 4 , 5 , 10 , 20 , 739 , 1478 , 2956 , 3695 , 7390 , 14780 , 93971 , 187942 , 375884 , 469855 , 939710 , 1879420 , 69444569 , 138889138 , 277778276 , 347222845 , 694445690 , 1388891380
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
-1388891379
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 1388891380 can be divided by 24 positive divisors.
The sum of these divisors (counting 1388891380) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010010110010001100110011110100
3
Ternary
10120210102222210111
4
Quaternary
1102302030303310
5
Quinary
10321024011010
6
Senary
345452432404
8
Octal
12262146364
10
Decimal
1388891380
12
Duodecimal
329178704
16
Hexadecimal
52c8ccf4
20
Vigesimal
11e0b890
36
Base36
mywrg4
md5
916b9bed793a4a955473364a05fa6a68
sha1
260583a377ba5c532855917d674e35beaca7b73d
sha256
824b9b71fee0a894ae9077a1878b85aa62f409a53ed36b2ce52904d0f5efc818
sha512
b322156a032ebfad896f9c7a26bc373571ad065b1b8b6c53efc8ca4c5a6ab12cd3739ee7c8ee601c71961b3840462b8d54db707828a1bb6168fde84a8aa7ebc0
ripemd-160
80bbcff52e94a34b88b8f651a21c8fd7ac1ac8ae
Diameter
2777782760
Circumference
8726661912.0844
Area
6.0601927529342E+18
Volume
1.1222599300918E+28
Surface area
2.4240771011737E+19
Circumference
8726661912.0844
Perimeter
5555565520
Area
1929019265438304400
Diagonal
1964189026.2591
Surface area
1.157411559263E+19
Volume
2.6791982296212E+27
Space diagonal
2405630436.3545
Perimeter
4166674140
Area
8.3528984412958E+17
Altitude
1202815218.1772
Surface area
8.3528984412958E+17
Volume
3.1574653938469E+26
Height
654729675.41969