68664688 is an even 8-digits composite number following 68664687
and preceding 68664689 . In scientific notation, it is written as 6.8664688 × 10^7.
The sum of its digits is 52. It has a total of 6 prime factors and 20 positive divisors.
There are 34220160 positive integers (up to 68664688) that are relatively prime to 68664688.
68664688 has 20 divisors, whose sum is 133472608
The reverse of 68664688 is 88646686
Previous prime number is 313
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
sixty-eight million six hundred sixty-four thousand six hundred eighty-eight
Scientific notation
6.8664688 × 10^7
Engineering notation
6.8664688 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 313 × 13711
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8583086
Product of the distinct prime numbers
The prime factorization of 68664688 is 2 × 2 × 2 × 2 × 313 × 13711.
Since it has a total of 6 prime factors.
5 , 2 , 89 , 31 , 167 , 108 , 7402 , 8839 , 29617 , 52086 , 749627 , 254794 , 8750035 , 5494818 , 59791001 , 47038505 , 65262284 , 630231463 , 2272528142 , 7813913102
n×2
137329376
n×3
205994064
n×4
274658752
n×5
343323440
n÷2
34332344
n÷3
22888229.333333
n÷3
17166172
n÷5
13732937.6
n2
4714839378137344
n3
3.2374297486991E+23
n4
2.2229710361635E+31
n5
1.526396126312E+39
2 √n
8286.4158717747
3 √n
409.49111561949
4 √n
91.029752673369
5 √n
36.927226497288
1 , 2 , 4 , 8 , 16 , 313 , 626 , 1252 , 2504 , 5008 , 13711 , 27422 , 54844 , 109688 , 219376 , 4291543 , 8583086 , 17166172 , 34332344 , 68664688
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68664687
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68664688 can be divided by 20 positive divisors.
The sum of these divisors (counting 68664688) is 1, the average is 0.05.
Base
System
Value
2
Binary
100000101111011110101110000
3
Ternary
11210012112020121
4
Quaternary
10011323311300
5
Quinary
120034232223
6
Senary
10451420024
8
Octal
405736560
10
Decimal
68664688
12
Duodecimal
1abb4614
16
Hexadecimal
417bd70
20
Vigesimal
11931e8
36
Base36
14vq0g
md5
2197bdf1aa45880d67865943046a2254
sha1
019021b352a11e7eb22d068607cd4ae48e764c45
sha256
91f0ee6cec0ebe47c13ad5fc062b42563a42f1ce9c6c2cbf851db2083ef744aa
sha512
b435d1eedf7607302eab5c76e56893cb67424c74f8bc708b64874f43ed1fad580bea1e7d1dd47c49d1994406bf2a0f876bda4530b95e053a97b0d453789cf339
ripemd-160
38172ae47b3b3622b59509175663dcce5a5ae9da
Diameter
137329376
Circumference
431432958.76367
Area
1.4812104753212E+16
Volume
1.3560914020035E+24
Surface area
5.9248419012849E+16
Circumference
431432958.76367
Perimeter
274658752
Area
4714839378137344
Diagonal
97106533.025717
Surface area
28289036268824064
Volume
3.2374297486991E+23
Space diagonal
118930728.30186
Perimeter
205994064
Area
2.0415853381151E+15
Altitude
59465364.150932
Surface area
2.0415853381151E+15
Volume
3.8153475482004E+22
Height
32368844.341906