68638487 is an odd 8-digits composite number following 68638486
and preceding 68638488 . In scientific notation, it is written as 6.8638487 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 68353440 positive integers (up to 68638487) that are relatively prime to 68638487.
68638487 has 4 divisors, whose sum is 68923536
The reverse of 68638487 is 78483686
Previous prime number is 241
Is Prime? no Number parity odd Number length 8 Sum of Digits 50 Digital Root 5
Name
sixty-eight million six hundred thirty-eight thousand four hundred eighty-seven
Scientific notation
6.8638487 × 10^7
Engineering notation
6.8638487 × 10^6
Prime Factorization
241 × 284807
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
68638487 Product of the distinct prime numbers
The prime factorization of 68638487 is 241 × 284807.
Since it has a total of 2 prime factors.
7 , 1 , 18 , 72 , 353 , 116 , 4162 , 340 , 31923 , 98061 , 445748 , 849722 , 7000310 , 9177116 , 99523020 , 11310778 , 637698503 , 636972642 , 6008448441 , 5679704855
n×2
137276974
n×3
205915461
n×4
274553948
n×5
343192435
n÷2
34319243.5
n÷3
22879495.666667
n÷3
17159621.75
n÷5
13727697.4
n2
4711241897649169
n3
3.2337251574565E+23
n4
2.2195800218165E+31
n5
1.5234861447291E+39
2 √n8284.8347599696
3 √n409.43902459577
4 √n91.021067671004
5 √n36.924407936543
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-68638486 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68638487 can be divided by 4 positive divisors.
The sum of these divisors (counting 68638487) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101110101011100010111
3
Ternary
11210011012022012
4
Quaternary
10011311130113
5
Quinary
120032412422
6
Senary
10451054435
8
Octal
405653427
10
Decimal
68638487
12
Duodecimal
1aba141b
16
Hexadecimal
4175717
20
Vigesimal
118jg47
36
Base36
14v5sn
md5
a8fae6a2fe1b9f34e7fc20a8cd752e56
sha1
ab7a42c1dbdae377ad9fc0d76de37f7bc7199f95
sha256
3d8cd07f59530ebecd0276a4f15c30061af83f76d50f5644351746ce32346072
sha512
d4e5f0807095bd41e2c44d6e5e6eb4a06bfc76629aee4cf4d9220db56eedd386988e79652c865c4e419d8cfcb360eea3527c661c9351efe124f249d8e22a171b
ripemd-160
f222611396ceefc016e065f83260490a31e7eda3
Diameter
137276974
Circumference
431268333.02544
Area
1.4800802934939E+16
Volume
1.3545396264525E+24
Surface area
5.9203211739756E+16
Circumference
431268333.02544
Perimeter
274553948
Area
4711241897649169
Diagonal
97069479.216169
Surface area
28267451385895014
Volume
3.2337251574565E+23
Space diagonal
118885346.83866
Perimeter
205915461
Area
2.0400275833689E+15
Altitude
59442673.419328
Surface area
2.0400275833689E+15
Volume
3.8109816455517E+22
Height
32356493.072056