68091387 is an odd 8-digits composite number following 68091386
and preceding 68091388 . In scientific notation, it is written as 6.8091387 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 35916192 positive integers (up to 68091387) that are relatively prime to 68091387.
68091387 has 16 divisors, whose sum is 111740160
The reverse of 68091387 is 78319086
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million ninety-one thousand three hundred eighty-seven
Scientific notation
6.8091387 × 10^7
Engineering notation
6.8091387 × 10^6
Prime Factorization
3 × 7 × 13 × 249419
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68091387
Product of the distinct prime numbers
The prime factorization of 68091387 is 3 × 7 × 13 × 249419.
Since it has a total of 4 prime factors.
6 , 6 , 12 , 41 , 717 , 764 , 2862 , 6055 , 18581 , 4509 , 498334 , 623609 , 4678066 , 5689556 , 96888964 , 34287380 , 245490034 , 822651032 , 23678811 , 3968751066
n×2
136182774
n×3
204274161
n×4
272365548
n×5
340456935
n÷2
34045693.5
n÷3
22697129
n÷3
17022846.75
n÷5
13618277.4
n2
4636436983583769
n3
3.1570142495032E+23
n4
2.1496547902743E+31
n5
1.4637297624097E+39
2 √n
8251.7505415518
3 √n
408.34827648586
4 √n
90.839146525888
5 √n
36.865356339859
1 , 3 , 7 , 13 , 21 , 39 , 91 , 273 , 249419 , 748257 , 1745933 , 3242447 , 5237799 , 9727341 , 22697129 , 68091387
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
-68091386
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 68091387 can be divided by 16 positive divisors.
The sum of these divisors (counting 68091387) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011101111110111111011
3
Ternary
11202010101211020
4
Quaternary
10003233313323
5
Quinary
114412411022
6
Senary
10431233523
8
Octal
403576773
10
Decimal
68091387
12
Duodecimal
1a9788a3
16
Hexadecimal
40efdfb
20
Vigesimal
115b897
36
Base36
14jfnf
md5
83585656a1cd4f18b9b33c0e040dbdda
sha1
06835de02e3911502507fd93fee29ea5777457c4
sha256
f2f2dafcccb2f691c6078c87be0c77b1e02538cc8552d1dad557abaa003e4dd6
sha512
156f61db2a538614b67d510006895613b27929ff7c4da9680f1a46c3302c0c974b12aba7df2e7d48c17daa55ed832579c82a7af06be7a75bc2dc7afdb22969c9
ripemd-160
eb5a8a3b72d8019419a95374d34402abcafca27e
Diameter
136182774
Circumference
427830802.34388
Area
1.4565796366459E+16
Volume
1.322407036469E+24
Surface area
5.8263185465835E+16
Circumference
427830802.34388
Perimeter
272365548
Area
4636436983583769
Diagonal
96295762.976195
Surface area
27818621901502614
Volume
3.1570142495032E+23
Space diagonal
117937741.84183
Perimeter
204274161
Area
2.0076361054146E+15
Altitude
58968870.920917
Surface area
2.0076361054146E+15
Volume
3.7205769735437E+22
Height
32098587.658732