68888921 is an odd 8-digits composite number following 68888920
and preceding 68888922 . In scientific notation, it is written as 6.8888921 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 68058852 positive integers (up to 68888921) that are relatively prime to 68888921.
68888921 has 4 divisors, whose sum is 69718992
The reverse of 68888921 is 12988886
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-eight million eight hundred eighty-eight thousand nine hundred twenty-one
Scientific notation
6.8888921 × 10^7
Engineering notation
6.8888921 × 10^6
Prime Factorization
83 × 829987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68888921
Product of the distinct prime numbers
The prime factorization of 68888921 is 83 × 829987.
Since it has a total of 2 prime factors.
8 , 2 , 62 , 29 , 117 , 606 , 7798 , 7185 , 47685 , 55939 , 828509 , 649478 , 2423288 , 382607 , 64889694 , 48893449 , 815268281 , 499897451 , 7326301105 , 734940230
n×2
137777842
n×3
206666763
n×4
275555684
n×5
344444605
n÷2
34444460.5
n÷3
22962973.666667
n÷3
17222230.25
n÷5
13777784.2
n2
4745683436544241
n3
3.269250113511E+23
n4
2.252151127989E+31
n5
1.551482611361E+39
2 √n
8299.9349997455
3 √n
409.93637918243
4 √n
91.103979055503
5 √n
36.95131313636
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68888920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68888921 can be divided by 4 positive divisors.
The sum of these divisors (counting 68888921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000110110010100101011001
3
Ternary
11210121220211112
4
Quaternary
10012302211121
5
Quinary
120113421141
6
Senary
10500310105
8
Octal
406624531
10
Decimal
68888921
12
Duodecimal
1b0a2335
16
Hexadecimal
41b2959
20
Vigesimal
11ab261
36
Base36
150j15
md5
18a57053365892c7b59ce80aa1fd24da
sha1
7570b651362d7eb0fe826fbbaf29cda8381e6863
sha256
36b74c2e89897cec61f1ae36e6719d2d82cb912d696be6200630fa5d4bb75bc8
sha512
63afa689bd7c6d2ab1b51f8d684abf217d118d69287dab9ab791f288aa056fdfe3280e18ce7705127fcf21a4cb6a99abfe33ce19d0590a279d3e755b34eb99e0
ripemd-160
e23635eb450706a4f4323b61d0263185a1ccb71b
Diameter
137777842
Circumference
432841856.25466
Area
1.490900422051E+16
Volume
1.3694202852472E+24
Surface area
5.9636016882041E+16
Circumference
432841856.25466
Perimeter
275555684
Area
4745683436544241
Diagonal
97423646.375449
Surface area
28474100619265446
Volume
3.269250113511E+23
Space diagonal
119319111.2506
Perimeter
206666763
Area
2.0549412071832E+15
Altitude
59659555.625299
Surface area
2.0549412071832E+15
Volume
3.8528482077643E+22
Height
32474548.791816