68091388 is an even 8-digits composite number following 68091387
and preceding 68091389 . In scientific notation, it is written as 6.8091388 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 33883920 positive integers (up to 68091388) that are relatively prime to 68091388.
68091388 has 12 divisors, whose sum is 119726152
The reverse of 68091388 is 88319086
Previous prime number is 211
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-eight million ninety-one thousand three hundred eighty-eight
Scientific notation
6.8091388 × 10^7
Engineering notation
6.8091388 × 10^6
Prime Factorization
2 × 2 × 211 × 80677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
34045694
Product of the distinct prime numbers
The prime factorization of 68091388 is 2 × 2 × 211 × 80677.
Since it has a total of 4 prime factors.
10 , 4 , 65 , 48 , 365 , 582 , 297 , 8480 , 61246 , 15623 , 877126 , 345913 , 1474410 , 8779469 , 24841082 , 70928672 , 955429358 , 469583441 , 5627851411 , 1241031872
n×2
136182776
n×3
204274164
n×4
272365552
n×5
340456940
n÷2
34045694
n÷3
22697129.333333
n÷3
17022847
n÷5
13618277.6
n2
4636437119766544
n3
3.1570143885963E+23
n4
2.1496549165549E+31
n5
1.4637298698925E+39
2 √n
8251.750602145
3 √n
408.34827848488
4 √n
90.839146859407
5 √n
36.865356448141
1 , 2 , 4 , 211 , 422 , 844 , 80677 , 161354 , 322708 , 17022847 , 34045694 , 68091388
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68091387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68091388 can be divided by 12 positive divisors.
The sum of these divisors (counting 68091388) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100000011101111110111111100
3
Ternary
11202010101211021
4
Quaternary
10003233313330
5
Quinary
114412411023
6
Senary
10431233524
8
Octal
403576774
10
Decimal
68091388
12
Duodecimal
1a9788a4
16
Hexadecimal
40efdfc
20
Vigesimal
115b898
36
Base36
14jfng
md5
10c248389e6fc46cf69b97a83051c7c6
sha1
e9b42e7d89e73e02edc367ef3428b6c6c207f67c
sha256
16788c142b9c92be61cf4e04d6f832f2cb17892e2a223705ef6b75cf051b4374
sha512
0b7ff5a8641863676fb825645a83dbacb792bd4df88b78f57e8b689267f2f27a56f7aa84d5bdf3518c266dcf4f7db9677fee3db2a98e87f1203ab93919549804
ripemd-160
d7c558524106a4fa3f0edd43f388971489db59c6
Diameter
136182776
Circumference
427830808.62706
Area
1.456579679429E+16
Volume
1.3224070947322E+24
Surface area
5.8263187177158E+16
Circumference
427830808.62706
Perimeter
272365552
Area
4636437119766544
Diagonal
96295764.390409
Surface area
27818622718599264
Volume
3.1570143885963E+23
Space diagonal
117937743.57389
Perimeter
204274164
Area
2.0076361643835E+15
Altitude
58968871.786943
Surface area
2.0076361643835E+15
Volume
3.7205771374665E+22
Height
32098588.130136