68991008 is an even 8-digits composite number following 68991007
and preceding 68991009 . In scientific notation, it is written as 6.8991008 × 10^7.
The sum of its digits is 41. It has a total of 7 prime factors and 24 positive divisors.
There are 34241536 positive integers (up to 68991008) that are relatively prime to 68991008.
68991008 has 24 divisors, whose sum is 136826172
The reverse of 68991008 is 80019986
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-eight million nine hundred ninety-one thousand eight
Scientific notation
6.8991008 × 10^7
Engineering notation
6.8991008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 137 × 15737
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
4311938
Product of the distinct prime numbers
The prime factorization of 68991008 is 2 × 2 × 2 × 2 × 2 × 137 × 15737.
Since it has a total of 7 prime factors.
4 , 2 , 56 , 78 , 317 , 62 , 9415 , 2587 , 51340 , 62332 , 777988 , 179359 , 144080 , 3286236 , 56074046 , 99217580 , 46668540 , 836603279 , 5635378562 , 6748710535
n×2
137982016
n×3
206973024
n×4
275964032
n×5
344955040
n÷2
34495504
n÷3
22997002.666667
n÷3
17247752
n÷5
13798201.6
n2
4759759184856064
n3
3.2838058400048E+23
n4
2.2655307497822E+31
n5
1.5630125008247E+39
2 √n
8306.0825904875
3 √n
410.13877515233
4 √n
91.137712229831
5 √n
36.962258335054
1 , 2 , 4 , 8 , 16 , 32 , 137 , 274 , 548 , 1096 , 2192 , 4384 , 15737 , 31474 , 62948 , 125896 , 251792 , 503584 , 2155969 , 4311938 , 8623876 , 17247752 , 34495504 , 68991008
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68991007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68991008 can be divided by 24 positive divisors.
The sum of these divisors (counting 68991008) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100000111001011100000100000
3
Ternary
11210211002212112
4
Quaternary
10013023200200
5
Quinary
120130203013
6
Senary
10502414452
8
Octal
407134040
10
Decimal
68991008
12
Duodecimal
1b131428
16
Hexadecimal
41cb820
20
Vigesimal
11b3ha8
36
Base36
152psw
md5
704d53b7be5c6c549eceb4c8a469cca5
sha1
bdc5b01efbec7a5ea9244c100015d4174099cbd7
sha256
916322558d1a44570dcd85bf4dc84d0c1014db0871e58ed9b916033a49204f9b
sha512
2810127f3eae8ed9257486dc6d7a6208ce871e0d9ad954bd6cc3eee11755c7add1b7ebb6d2ec640b2585b8dfd80b2d2dc501b4743b6e0c4a121fd50091db2bcb
ripemd-160
aa262a2b982800c91c5daf81457e6bd5b997eba3
Diameter
137982016
Circumference
433483287.79311
Area
1.4953224488E+16
Volume
1.3755173737032E+24
Surface area
5.9812897952001E+16
Circumference
433483287.79311
Perimeter
275964032
Area
4759759184856064
Diagonal
97568019.195391
Surface area
28558555109136384
Volume
3.2838058400048E+23
Space diagonal
119495931.12139
Perimeter
206973024
Area
2.0610361849908E+15
Altitude
59747965.560695
Surface area
2.0610361849908E+15
Volume
3.8700022959456E+22
Height
32522673.06513