68638239 is an odd 8-digits composite number following 68638238
and preceding 68638240 . In scientific notation, it is written as 6.8638239 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 45691128 positive integers (up to 68638239) that are relatively prime to 68638239.
68638239 has 8 divisors, whose sum is 71285760
The reverse of 68638239 is 93283686
Previous prime number is 883
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-eight million six hundred thirty-eight thousand two hundred thirty-nine
Scientific notation
6.8638239 × 10^7
Engineering notation
6.8638239 × 10^6
Prime Factorization
27 × 883 × 2879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68638239
Product of the distinct prime numbers
The prime factorization of 68638239 is 27 × 883 × 2879.
Since it has a total of 3 prime factors.
8 , 1 , 99 , 33 , 714 , 480 , 8188 , 1360 , 79795 , 81204 , 514083 , 955439 , 3801143 , 5294699 , 62626867 , 61898716 , 821123390 , 467872896 , 6212980249 , 5919460804
n×2
137276478
n×3
205914717
n×4
274552956
n×5
343191195
n÷2
34319119.5
n÷3
22879413
n÷3
17159559.75
n÷5
13727647.8
n2
4711207853021121
n3
3.2336901059434E+23
n4
2.2195479434368E+31
n5
1.5234586221357E+39
2 √n
8284.8197928501
3 √n
409.43853147593
4 √n
91.020985453081
5 √n
36.924381253943
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
-68638238
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 68638239 can be divided by 8 positive divisors.
The sum of these divisors (counting 68638239) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101110101011000011111
3
Ternary
11210011011222000
4
Quaternary
10011311120133
5
Quinary
120032410424
6
Senary
10451053343
8
Octal
405653037
10
Decimal
68638239
12
Duodecimal
1aba1253
16
Hexadecimal
417561f
20
Vigesimal
118jfbj
36
Base36
14v5lr
md5
c5a82e08207a4c7ba0afe17a0c920921
sha1
5868d1654927463cde2e35bf2a07f0c332a8af15
sha256
6c42a3884096f291da2729e9f1734f7d55b61935e033976297ff1a28b2501f76
sha512
9a9d7c0b8c81f1c5010ebc7d8288c97f016498fc20d252fb1497432f43fab61a6ec80c659c20fc59d126c14fb28cd005f19409890d58a38753f42416b53aa6d3
ripemd-160
06e6d63e6a6d2dbf8c1e6da85bf45645b70839e6
Diameter
137276478
Circumference
431266774.79548
Area
1.4800695980586E+16
Volume
1.354524944109E+24
Surface area
5.9202783922343E+16
Circumference
431266774.79548
Perimeter
274552956
Area
4711207853021121
Diagonal
97069128.491206
Surface area
28267247118126726
Volume
3.2336901059434E+23
Space diagonal
118884917.29006
Perimeter
205914717
Area
2.0400128416125E+15
Altitude
59442458.645028
Surface area
2.0400128416125E+15
Volume
3.8109403369474E+22
Height
32356376.163735