68909438 is an even 8-digits composite number following 68909437
and preceding 68909439 . In scientific notation, it is written as 6.8909438 × 10^7.
The sum of its digits is 47. It has a total of 5 prime factors and 32 positive divisors.
There are 30723840 positive integers (up to 68909438) that are relatively prime to 68909438.
68909438 has 32 divisors, whose sum is 115153920
The reverse of 68909438 is 83490986
Previous prime number is 509
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million nine hundred nine thousand four hundred thirty-eight
Scientific notation
6.8909438 × 10^7
Engineering notation
6.8909438 × 10^6
Prime Factorization
2 × 13 × 41 × 509 × 127
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
68909438
Product of the distinct prime numbers
The prime factorization of 68909438 is 2 × 13 × 41 × 509 × 127.
Since it has a total of 5 prime factors.
2 , 5 , 59 , 70 , 423 , 500 , 2293 , 3545 , 21350 , 72871 , 265952 , 936837 , 995505 , 2429520 , 11157972 , 44936473 , 406825205 , 287861767 , 2661269584 , 1207112112
n×2
137818876
n×3
206728314
n×4
275637752
n×5
344547190
n÷2
34454719
n÷3
22969812.666667
n÷3
17227359.5
n÷5
13781887.6
n2
4748510645475844
n3
3.2721719991676E+23
n4
2.2548353350197E+31
n5
1.5537943571875E+39
2 √n
8301.1708812673
3 √n
409.97707188856
4 √n
91.11076161062
5 √n
36.953513896018
1 , 2 , 13 , 26 , 41 , 82 , 127 , 254 , 509 , 533 , 1018 , 1066 , 1651 , 3302 , 5207 , 6617 , 10414 , 13234 , 20869 , 41738 , 64643 , 67691 , 129286 , 135382 , 271297 , 542594 , 840359 , 1680718 , 2650363 , 5300726 , 34454719 , 68909438
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
-68909437
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 68909438 can be divided by 32 positive divisors.
The sum of these divisors (counting 68909438) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000110110111100101111110
3
Ternary
11210122221222102
4
Quaternary
10012313211332
5
Quinary
120120100223
6
Senary
10500545102
8
Octal
406674576
10
Decimal
68909438
12
Duodecimal
1b0b2192
16
Hexadecimal
41b797e
20
Vigesimal
11addbi
36
Base36
150yv2
md5
61a39c31b93783eb8b1a6493e2c4a134
sha1
6c524dc64f8c982568db6705fd09526ea0e66a5c
sha256
9394745a9a1b457f1e368d7394dca6b2a37d1d582c1ed7ec25ad03e8658e5c3e
sha512
489da5335a90c1deb39daf3ba889cc49a68b9166feae92a48a0f466d33c3b527daa352e2f9ad1a137a988c51b85551dc7e67e3189917f2ec4b5412b4e324ac50
ripemd-160
83cc220cc0d137efc5d5684822d6dabce4d2c062
Diameter
137818876
Circumference
432970768.3676
Area
1.491788615932E+16
Volume
1.3706442018489E+24
Surface area
5.9671544637279E+16
Circumference
432970768.3676
Perimeter
275637752
Area
4748510645475844
Diagonal
97452661.795108
Surface area
28491063872855064
Volume
3.2721719991676E+23
Space diagonal
119354647.73702
Perimeter
206728314
Area
2.0561654245615E+15
Altitude
59677323.868509
Surface area
2.0561654245615E+15
Volume
3.8562916830336E+22
Height
32484220.598369