1381808 is an even 7-digits composite number following 1381807
and preceding 1381809 . In scientific notation, it is written as 1.381808 × 10^6.
The sum of its digits is 29. It has a total of 6 prime factors and 20 positive divisors.
There are 680064 positive integers (up to 1381808) that are relatively prime to 1381808.
1381808 has 20 divisors, whose sum is 2719320
The reverse of 1381808 is 8081831
Previous prime number is 67
Is Prime? no
Number parity even
Number length 7
Sum of Digits 29
Digital Root 2
Name
one million three hundred eighty-one thousand eight hundred eight
Scientific notation
1.381808 × 10^6
Engineering notation
1.381808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 67 × 1289
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
172726
Product of the distinct prime numbers
The prime factorization of 1381808 is 2 × 2 × 2 × 2 × 67 × 1289.
Since it has a total of 6 prime factors.
2 , 8 , 10 , 64 , 311 , 460 , 3393 , 9304 , 3205 , 76581 , 485351 , 782510 , 271540 , 6705715 , 41049037 , 58964319 , 678430382 , 346568265 , 5877312956 , 2752285225
n×2
2763616
n×3
4145424
n×4
5527232
n×5
6909040
n÷2
690904
n÷3
460602.66666667
n÷3
345452
n÷5
276361.6
n2
1909393348864
n3
2638415004607066112
n4
3.6457829606861E+24
n5
5.0377720613397E+30
2 √n
1175.503296465
3 √n
111.38222799672
4 √n
34.28561354949
5 √n
16.907894937556
1 , 2 , 4 , 8 , 16 , 67 , 134 , 268 , 536 , 1072 , 1289 , 2578 , 5156 , 10312 , 20624 , 86363 , 172726 , 345452 , 690904 , 1381808
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1381807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1381808 can be divided by 20 positive divisors.
The sum of these divisors (counting 1381808) is 1, the average is 0.05.
Base
System
Value
2
Binary
101010001010110110000
3
Ternary
2121012111002
4
Quaternary
11101112300
5
Quinary
323204213
6
Senary
45341132
8
Octal
5212660
10
Decimal
1381808
12
Duodecimal
5677a8
16
Hexadecimal
1515b0
20
Vigesimal
8cea8
36
Base36
tm7k
md5
c39259c150edc037b85140afc596479e
sha1
72919ad85ab23919ece2d23f4899b295bf9c2c1e
sha256
415621cf899eed48cb1b7af414286468fab4252a5fd5065d32c6446ed2b2c520
sha512
90ceb8d01986461a11b076d28a38a18bf2778981e3403cf999119f00b015e1f03ca1c83f1f674d491d00d9f1ef20d92bdcd67151088fd17c75b4b6382ca08ea4
ripemd-160
be376a42481b1d4bdc700d6897a075114f5def70
Diameter
2763616
Circumference
8682155.7229432
Area
5998536117604.4
Volume
1.105176692746E+19
Surface area
23994144470417
Circumference
8682155.7229432
Perimeter
5527232
Area
1909393348864
Diagonal
1954171.6141956
Surface area
11456360093184
Volume
2638415004607066112
Space diagonal
2393361.6623051
Perimeter
4145424
Area
826791572966.63
Altitude
1196680.8311526
Surface area
826791572966.63
Volume
3.1094019022367E+17
Height
651390.53806521