68388619 is an odd 8-digits composite number following 68388618
and preceding 68388620 . In scientific notation, it is written as 6.8388619 × 10^7.
The sum of its digits is 49. It has a total of 5 prime factors and 32 positive divisors.
There are 56754432 positive integers (up to 68388619) that are relatively prime to 68388619.
68388619 has 32 divisors, whose sum is 81607680
The reverse of 68388619 is 91688386
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
sixty-eight million three hundred eighty-eight thousand six hundred nineteen
Scientific notation
6.8388619 × 10^7
Engineering notation
6.8388619 × 10^6
Prime Factorization
13 × 19 × 137 × 47 × 43
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
68388619
Product of the distinct prime numbers
The prime factorization of 68388619 is 13 × 19 × 137 × 47 × 43.
Since it has a total of 5 prime factors.
4 , 7 , 68 , 68 , 838 , 186 , 4453 , 4606 , 47734 , 7696 , 531963 , 324826 , 3354739 , 8390711 , 52376700 , 53891947 , 748671271 , 371855649 , 3588099097 , 8202359644
n×2
136777238
n×3
205165857
n×4
273554476
n×5
341943095
n÷2
34194309.5
n÷3
22796206.333333
n÷3
17097154.75
n÷5
13677723.8
n2
4677003208727161
n3
3.1985379050342E+23
n4
2.1874359014444E+31
n5
1.495957204508E+39
2 √n
8269.7411688638
3 √n
408.94158693769
4 √n
90.93811724939
5 √n
36.89748516345
1 , 13 , 19 , 43 , 47 , 137 , 247 , 559 , 611 , 817 , 893 , 1781 , 2021 , 2603 , 5891 , 6439 , 10621 , 11609 , 26273 , 33839 , 38399 , 76583 , 83707 , 111929 , 122341 , 276877 , 499187 , 1455077 , 1590433 , 3599401 , 5260663 , 68388619
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
-68388618
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 68388619 can be divided by 32 positive divisors.
The sum of these divisors (counting 68388619) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000100111000011100001011
3
Ternary
11202200111112211
4
Quaternary
10010320130023
5
Quinary
120001413434
6
Senary
10441445551
8
Octal
404703413
10
Decimal
68388619
12
Duodecimal
1aaa08b7
16
Hexadecimal
413870b
20
Vigesimal
1178baj
36
Base36
14pszv
md5
13f424d2c7c34b6680e09ca1c5c5b369
sha1
afea9d7ddea507d290c8abd808fea26ba6d93502
sha256
d858ae43880d88264400da0075f206cf41383077d57ffd0089587e115869b193
sha512
ea47089979ff9183d7618335dcefe1a603a177e3503e43c7c17f41bb23a1ed4cca90c7bc2987cf0f3239770189fa279b9d763520a97a1ea632be1f3624760f52
ripemd-160
215ba7041593b28c27efabdf5f9accba9ddde174
Diameter
136777238
Circumference
429698366.0791
Area
1.4693238921353E+16
Volume
1.3398004246245E+24
Surface area
5.8772955685413E+16
Circumference
429698366.0791
Perimeter
273554476
Area
4677003208727161
Diagonal
96716112.501766
Surface area
28062019252362966
Volume
3.1985379050342E+23
Space diagonal
118452562.76747
Perimeter
205165857
Area
2.0252017961695E+15
Altitude
59226281.383735
Surface area
2.0252017961695E+15
Volume
3.7695130708865E+22
Height
32238704.167255