68638478 is an even 8-digits composite number following 68638477
and preceding 68638479 . In scientific notation, it is written as 6.8638478 × 10^7.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 33146496 positive integers (up to 68638478) that are relatively prime to 68638478.
68638478 has 16 divisors, whose sum is 106517040
The reverse of 68638478 is 87483686
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-eight million six hundred thirty-eight thousand four hundred seventy-eight
Scientific notation
6.8638478 × 10^7
Engineering notation
6.8638478 × 10^6
Prime Factorization
2 × 37 × 139 × 6673
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68638478
Product of the distinct prime numbers
The prime factorization of 68638478 is 2 × 37 × 139 × 6673.
Since it has a total of 4 prime factors.
1 , 9 , 86 , 23 , 420 , 921 , 4488 , 8388 , 14982 , 85050 , 355635 , 970134 , 2254882 , 4350403 , 81158306 , 80654502 , 367948468 , 444543582 , 5812807922 , 7729431430
n×2
137276956
n×3
205915434
n×4
274553912
n×5
343192390
n÷2
34319239
n÷3
22879492.666667
n÷3
17159619.5
n÷5
13727695.6
n2
4711240662156484
n3
3.2337238854213E+23
n4
2.2195788576757E+31
n5
1.5234851459184E+39
2 √n
8284.8342168084
3 √n
409.43900670032
4 √n
91.021064687293
5 √n
36.924406968224
1 , 2 , 37 , 74 , 139 , 278 , 5143 , 6673 , 10286 , 13346 , 246901 , 493802 , 927547 , 1855094 , 34319239 , 68638478
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68638477
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68638478 can be divided by 16 positive divisors.
The sum of these divisors (counting 68638478) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000101110101011100001110
3
Ternary
11210011012021212
4
Quaternary
10011311130032
5
Quinary
120032412403
6
Senary
10451054422
8
Octal
405653416
10
Decimal
68638478
12
Duodecimal
1aba1412
16
Hexadecimal
417570e
20
Vigesimal
118jg3i
36
Base36
14v5se
md5
410b4abe7efdebd546bf584ab6c820ba
sha1
129f434107c4e0c9b6047478ecda78470f0c3695
sha256
697a119258993ebc936efc803c8d85ae9c9a437907b59d41fa0219d26a0e3c51
sha512
756c70cd9eb62b92413f7917bf70a54840331f309cdc440b2a34171a5fde1e574deb3a987d0ee8777aeec28aaf5189e6010827f427f14f036e91be8fc1379b38
ripemd-160
56c4d154d71d1975046a476982580575bbd93d37
Diameter
137276956
Circumference
431268276.47677
Area
1.4800799053524E+16
Volume
1.3545390936237E+24
Surface area
5.9203196214097E+16
Circumference
431268276.47677
Perimeter
274553912
Area
4711240662156484
Diagonal
97069466.488247
Surface area
28267443972938904
Volume
3.2337238854213E+23
Space diagonal
118885331.2502
Perimeter
205915434
Area
2.0400270483849E+15
Altitude
59442665.625099
Surface area
2.0400270483849E+15
Volume
3.8109801464439E+22
Height
32356488.829416