1381918 is an even 7-digits composite number following 1381917
and preceding 1381919 . In scientific notation, it is written as 1.381918 × 10^6.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 667740 positive integers (up to 1381918) that are relatively prime to 1381918.
1381918 has 12 divisors, whose sum is 2144880
The reverse of 1381918 is 8191831
Previous prime number is 31
Is Prime? no
Number parity even
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million three hundred eighty-one thousand nine hundred eighteen
Scientific notation
1.381918 × 10^6
Engineering notation
1.381918 × 10^6
Prime Factorization
2 × 31 × 31 × 719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
44578
Product of the distinct prime numbers
The prime factorization of 1381918 is 2 × 31 × 31 × 719.
Since it has a total of 4 prime factors.
9 , 3 , 38 , 29 , 49 , 900 , 2919 , 633 , 50320 , 84958 , 469062 , 607056 , 6395076 , 2522401 , 10378418 , 70192417 , 511437967 , 387631400 , 4501241531 , 3138981188
n×2
2763836
n×3
4145754
n×4
5527672
n×5
6909590
n÷2
690959
n÷3
460639.33333333
n÷3
345479.5
n÷5
276383.6
n2
1909697358724
n3
2639045154573152632
n4
3.6469440019174E+24
n5
5.0397775612417E+30
2 √n
1175.5500840032
3 √n
111.38518347726
4 √n
34.286295862972
5 √n
16.908164122453
1 , 2 , 31 , 62 , 719 , 961 , 1438 , 1922 , 22289 , 44578 , 690959 , 1381918
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
-1381917
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 1381918 can be divided by 12 positive divisors.
The sum of these divisors (counting 1381918) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101010001011000011110
3
Ternary
2121012122011
4
Quaternary
11101120132
5
Quinary
323210133
6
Senary
45341434
8
Octal
5213036
10
Decimal
1381918
12
Duodecimal
56787a
16
Hexadecimal
15161e
20
Vigesimal
8cefi
36
Base36
tmam
md5
3103e13559d7c3c21b50c26ec6e2564c
sha1
04231f2e32ef0d33b0aade159b097ebd16970f56
sha256
0a245f0aeb22f002c805cb56285413e0c89639a0138589603ed4d9c04b2660a3
sha512
0b4628b67de5c1b3e911a21045c1ea68b57d35c4d75706a6f4be0d11ce134e53226cc61bab258d6e7bfa909406a8d238d2743e9849aaf595260448b34cc776e7
ripemd-160
23e451a5c24967ff8ae9d05a0574df40d14643cb
Diameter
2763836
Circumference
8682846.873327
Area
5999491192747.2
Volume
1.1054406493465E+19
Surface area
23997964770989
Circumference
8682846.873327
Perimeter
5527672
Area
1909697358724
Diagonal
1954327.1776875
Surface area
11458184152344
Volume
2639045154573152632
Space diagonal
2393552.187894
Perimeter
4145754
Area
826923213097.51
Altitude
1196776.093947
Surface area
826923213097.51
Volume
3.1101445410936E+17
Height
651442.3925625