68664690 is an even 8-digits composite number following 68664689
and preceding 68664691 . In scientific notation, it is written as 6.8664690 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 17719200 positive integers (up to 68664690) that are relatively prime to 68664690.
68664690 has 32 divisors, whose sum is 141765120
The reverse of 68664690 is 09646686
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-eight million six hundred sixty-four thousand six hundred ninety
Scientific notation
6.8664690 × 10^7
Engineering notation
6.8664690 × 10^6
Prime Factorization
2 × 5 × 9 × 31 × 24611
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
68664690
Product of the distinct prime numbers
The prime factorization of 68664690 is 2 × 5 × 9 × 31 × 24611.
Since it has a total of 5 prime factors.
4 , 3 , 56 , 69 , 610 , 61 , 375 , 3658 , 79899 , 24547 , 88034 , 796339 , 8088522 , 3446430 , 20736489 , 33655040 , 996627033 , 847029873 , 5973052085 , 819193247
n×2
137329380
n×3
205994070
n×4
274658760
n×5
343323450
n÷2
34332345
n÷3
22888230
n÷3
17166172.5
n÷5
13732938
n2
4714839652796100
n3
3.2374300315895E+23
n4
2.2229712951578E+31
n5
1.5263963486091E+39
2 √n
8286.4159924542
3 √n
409.49111959524
4 √n
91.029753336226
5 √n
36.927226712405
1 , 2 , 5 , 9 , 10 , 18 , 31 , 45 , 62 , 90 , 155 , 279 , 310 , 558 , 1395 , 2790 , 24611 , 49222 , 123055 , 221499 , 246110 , 442998 , 762941 , 1107495 , 1525882 , 2214990 , 3814705 , 6866469 , 7629410 , 13732938 , 34332345 , 68664690
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68664689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68664690 can be divided by 32 positive divisors.
The sum of these divisors (counting 68664690) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000101111011110101110010
3
Ternary
11210012112020200
4
Quaternary
10011323311302
5
Quinary
120034232230
6
Senary
10451420030
8
Octal
405736562
10
Decimal
68664690
12
Duodecimal
1abb4616
16
Hexadecimal
417bd72
20
Vigesimal
11931ea
36
Base36
14vq0i
md5
192a041824ace65b6fbc5222b8aa59d0
sha1
d69a78730930979e3372305a82893bd5ff31ac6e
sha256
8594d62789a808ac89741693a5d4393fee5ec335c1fffe01739c7bc3f9c88a6a
sha512
3a042b0dcdb1f119ac1b0dddc4ff84196d056368ac2adcb6c9cda76d8e8a5fa5f96cb172542ec4e0370699ebec1d8dbb3128720e2bef3599502516a0d097b19b
ripemd-160
98b90e59a3915610aaa5668a92f1cd17556b0b3d
Diameter
137329380
Circumference
431432971.33004
Area
1.4812105616078E+16
Volume
1.3560915205003E+24
Surface area
5.9248422464312E+16
Circumference
431432971.33004
Perimeter
274658760
Area
4714839652796100
Diagonal
97106535.854144
Surface area
28289037916776600
Volume
3.2374300315895E+23
Space diagonal
118930731.76597
Perimeter
205994070
Area
2.0415854570458E+15
Altitude
59465365.882983
Surface area
2.0415854570458E+15
Volume
3.8153478815899E+22
Height
32368845.284715