1388891390 is an even 10-digits composite number following 1388891389
and preceding 1388891391 . In scientific notation, it is written as 1.388891390 × 10^9.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 555556552 positive integers (up to 1388891390) that are relatively prime to 1388891390.
1388891390 has 8 divisors, whose sum is 2500004520
The reverse of 1388891390 is 0931988831
Previous prime number is 5
Is Prime? no Number parity even Number length 10 Sum of Digits 50 Digital Root 5
Name
one billion three hundred eighty-eight million eight hundred ninety-one thousand three hundred ninety
Scientific notation
1.388891390 × 10^9
Engineering notation
1.388891390 × 10^9
Prime Factorization
2 × 5 × 138889139
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1388891390 Product of the distinct prime numbers
The prime factorization of 1388891390 is 2 × 5 × 138889139.
Since it has a total of 3 prime factors.
9 , 5 , 80 , 90 , 900 , 491 , 1851 , 1831 , 6573 , 36343 , 241601 , 385224 , 8512167 , 7662037 , 38957901 , 86988156 , 740335852 , 514829950 , 2497702657 , 8592148780
n×2
2777782780
n×3
4166674170
n×4
5555565560
n×5
6944456950
n÷2
694445695
n÷3
462963796.66667
n÷3
347222847.5
n÷5
277778278
n2
1929019293216132100
n3
2.6791982874918E+27
n4
3.7211154336001E+36
n5
5.1682251869232E+45
2 √n37267.833180908
3 √n1115.7222532004
4 √n193.04878445851
5 √n67.380411219034
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
-1388891389 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 1388891390 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388891390) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110010001100110011111110
3
Ternary
10120210102222210212
4
Quaternary
1102302030303332
5
Quinary
10321024011030
6
Senary
345452432422
8
Octal
12262146376
10
Decimal
1388891390
12
Duodecimal
329178712
16
Hexadecimal
52c8ccfe
20
Vigesimal
11e0b89a
36
Base36
mywrge
md5
057e02c225f10b56e8ee6c51c87b016d
sha1
59248ef57f1d1f179171e9f467729abef6c43d87
sha256
92873b04ac5bd02d4bffcdc8e354c7dc80e459a8c2c2e0dc96aaecc3c2de3af8
sha512
f0a9b68299a488bea2450519566becf186366e8947d67fb9d88064aa19f28ccbf6cc9453a1a7caa281536645d91537445271641f61ffd4bab2b9a1f2dba93c8e
ripemd-160
225bb36942e007fd86a5efc14675c26cf8932bec
Diameter
2777782780
Circumference
8726661974.9162
Area
6.0601928402008E+18
Volume
1.1222599543326E+28
Surface area
2.4240771360803E+19
Circumference
8726661974.9162
Perimeter
5555565560
Area
1929019293216132100
Diagonal
1964189040.4012
Surface area
1.1574115759297E+19
Volume
2.6791982874918E+27
Space diagonal
2405630453.675
Perimeter
4166674170
Area
8.3528985615774E+17
Altitude
1202815226.8375
Surface area
8.3528985615774E+17
Volume
3.157465462048E+26
Height
654729680.13374