68638489 is an odd 8-digits composite number following 68638488
and preceding 68638490 . In scientific notation, it is written as 6.8638489 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 67488000 positive integers (up to 68638489) that are relatively prime to 68638489.
68638489 has 8 divisors, whose sum is 69798600
The reverse of 68638489 is 98483686
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
sixty-eight million six hundred thirty-eight thousand four hundred eighty-nine
Scientific notation
6.8638489 × 10^7
Engineering notation
6.8638489 × 10^6
Prime Factorization
149 × 101 × 4561
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68638489
Product of the distinct prime numbers
The prime factorization of 68638489 is 149 × 101 × 4561.
Since it has a total of 3 prime factors.
3 , 7 , 2 , 8 , 239 , 790 , 6974 , 870 , 84995 , 88454 , 601752 , 783181 , 7387310 , 9906507 , 72857543 , 43945033 , 848639616 , 812887761 , 2011125268 , 5404670347
n×2
137276978
n×3
205915467
n×4
274553956
n×5
343192445
n÷2
34319244.5
n÷3
22879496.333333
n÷3
17159622.25
n÷5
13727697.8
n2
4711242172203121
n3
3.233725440131E+23
n4
2.2195802805145E+31
n5
1.5234863666871E+39
2 √n
8284.834880672
3 √n
409.43902857254
4 √n
91.021068334051
5 √n
36.924408151725
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68638488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68638489 can be divided by 8 positive divisors.
The sum of these divisors (counting 68638489) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101110101011100011001
3
Ternary
11210011012022021
4
Quaternary
10011311130121
5
Quinary
120032412424
6
Senary
10451054441
8
Octal
405653431
10
Decimal
68638489
12
Duodecimal
1aba1421
16
Hexadecimal
4175719
20
Vigesimal
118jg49
36
Base36
14v5sp
md5
6b50b407575fc4b8c2ac0efaf34981c7
sha1
fe619b70abb7ca5be01a1c2b8af6deba98fe20bf
sha256
a152f48b6e42f252f373803afba18471dee12d1b26ef347196791d948e1fe62d
sha512
bc183d79dc042bfe2d5a556b50090ed5913b60909d2e35a9c98d1157f32edf26da684d3d07294b1bbd402161ca3146e15ff2f8ea293e152bc6369c89894b5ff2
ripemd-160
37a36c843798cf2eba2f408474d1dff443080793
Diameter
137276978
Circumference
431268345.59181
Area
1.4800803797476E+16
Volume
1.3545397448589E+24
Surface area
5.9203215189903E+16
Circumference
431268345.59181
Perimeter
274553956
Area
4711242172203121
Diagonal
97069482.044597
Surface area
28267453033218726
Volume
3.233725440131E+23
Space diagonal
118885350.30276
Perimeter
205915467
Area
2.0400277022542E+15
Altitude
59442675.151379
Surface area
2.0400277022542E+15
Volume
3.8109819786868E+22
Height
32356494.014866