68888944 is an even 8-digits composite number following 68888943
and preceding 68888945 . In scientific notation, it is written as 6.8888944 × 10^7.
The sum of its digits is 55. It has a total of 6 prime factors and 20 positive divisors.
There are 33333120 positive integers (up to 68888944) that are relatively prime to 68888944.
68888944 has 20 divisors, whose sum is 137778880
The reverse of 68888944 is 44988886
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 55
Digital Root 1
Name
sixty-eight million eight hundred eighty-eight thousand nine hundred forty-four
Scientific notation
6.8888944 × 10^7
Engineering notation
6.8888944 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 31 × 138889
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8611118
Product of the distinct prime numbers
The prime factorization of 68888944 is 2 × 2 × 2 × 2 × 31 × 138889.
Since it has a total of 6 prime factors.
8 , 4 , 54 , 49 , 481 , 154 , 1594 , 4275 , 8115 , 86351 , 12373 , 43112 , 3724063 , 1649783 , 89029172 , 76273853 , 20842168 , 811982511 , 3776946816 , 2068204670
n×2
137777888
n×3
206666832
n×4
275555776
n×5
344444720
n÷2
34444472
n÷3
22962981.333333
n÷3
17222236
n÷5
13777788.8
n2
4745686605435136
n3
3.2692533880337E+23
n4
2.2521541357006E+31
n5
1.5514852013365E+39
2 √n
8299.9363852984
3 √n
409.93642480435
4 √n
91.103986659742
5 √n
36.951315603753
1 , 2 , 4 , 8 , 16 , 31 , 62 , 124 , 248 , 496 , 138889 , 277778 , 555556 , 1111112 , 2222224 , 4305559 , 8611118 , 17222236 , 34444472 , 68888944
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
-68888943
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 68888944 can be divided by 20 positive divisors.
The sum of these divisors (counting 68888944) is 1, the average is 0.05.
Base
System
Value
2
Binary
100000110110010100101110000
3
Ternary
11210121220212101
4
Quaternary
10012302211300
5
Quinary
120113421234
6
Senary
10500310144
8
Octal
406624560
10
Decimal
68888944
12
Duodecimal
1b0a2354
16
Hexadecimal
41b2970
20
Vigesimal
11ab274
36
Base36
150j1s
md5
5778ec589ba785505f31e29c604173e9
sha1
f94b683a3b221f35b4edec291f4c81a3549f4c20
sha256
01078fa07f89b316cb1a1d717b9d9d9b57266364910ac322586dbb9e1c5fd553
sha512
07d83075bf90fb56ca81ccc0573783c382e9072c6ff7d8b789d5a20002792c07dceb9c51de762f2fb2e6fbd28cab9260feb6cc4e31f025d3bd10840274baf179
ripemd-160
70ed8168bcf1de9ff48ef5122c88ea44825550a4
Diameter
137777888
Circumference
432842000.76792
Area
1.4909014175875E+16
Volume
1.369421656876E+24
Surface area
5.9636056703498E+16
Circumference
432842000.76792
Perimeter
275555776
Area
4745686605435136
Diagonal
97423678.902361
Surface area
28474119632610816
Volume
3.2692533880337E+23
Space diagonal
119319151.08777
Perimeter
206666832
Area
2.0549425793532E+15
Altitude
59659575.543884
Surface area
2.0549425793532E+15
Volume
3.8528520668262E+22
Height
32474559.63412