68640902 is an even 8-digits composite number following 68640901
and preceding 68640903 . In scientific notation, it is written as 6.8640902 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 31095720 positive integers (up to 68640902) that are relatively prime to 68640902.
68640902 has 16 divisors, whose sum is 112698432
The reverse of 68640902 is 20904686
Previous prime number is 307
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-eight million six hundred forty thousand nine hundred two
Scientific notation
6.8640902 × 10^7
Engineering notation
6.8640902 × 10^6
Prime Factorization
2 × 11 × 307 × 10163
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68640902
Product of the distinct prime numbers
The prime factorization of 68640902 is 2 × 11 × 307 × 10163.
Since it has a total of 4 prime factors.
8 , 9 , 18 , 9 , 595 , 779 , 8287 , 1452 , 14039 , 34873 , 22514 , 443872 , 2231195 , 1445770 , 86317255 , 56124249 , 317828258 , 530245188 , 9975155084 , 5323948571
n×2
137281804
n×3
205922706
n×4
274563608
n×5
343204510
n÷2
34320451
n÷3
22880300.666667
n÷3
17160225.5
n÷5
13728180.4
n2
4711573427373604
n3
3.2340664989416E+23
n4
2.2198924161533E+31
n5
1.5237541778772E+39
2 √n
8284.9805069173
3 √n
409.44382648701
4 √n
91.021868289534
5 √n
36.924667765086
1 , 2 , 11 , 22 , 307 , 614 , 3377 , 6754 , 10163 , 20326 , 111793 , 223586 , 3120041 , 6240082 , 34320451 , 68640902
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68640901
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68640902 can be divided by 16 positive divisors.
The sum of these divisors (counting 68640902) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000101110110000010000110
3
Ternary
11210011022121122
4
Quaternary
10011312002012
5
Quinary
120033002102
6
Senary
10451113542
8
Octal
405660206
10
Decimal
68640902
12
Duodecimal
1aba28b2
16
Hexadecimal
4176086
20
Vigesimal
1190252
36
Base36
14v7nq
md5
30e0b85b20adc28074587c278497cd94
sha1
1cc78ab47c7facf2267fd18b4bc5dd628997762f
sha256
a3bb070f6bdada349d0c4280ec0c7f3f3e9c1b2c6371255f4b29be9c24a9cb1b
sha512
863da5500c2c72c721e18da9e687bd1f59383a9a85cd9a9789b1989f46820e64e1a4dd90a4a002b7225b0948674172164837523840309581630950b2db841a3f
ripemd-160
8a896c00d5b76d6f7a4846a3b12aa1a0b73f1680
Diameter
137281804
Circumference
431283506.91795
Area
1.4801844466286E+16
Volume
1.3546826072394E+24
Surface area
5.9207377865143E+16
Circumference
431283506.91795
Perimeter
274563608
Area
4711573427373604
Diagonal
97072894.541923
Surface area
28269440564241624
Volume
3.2340664989416E+23
Space diagonal
118889529.74136
Perimeter
205922706
Area
2.0401711399506E+15
Altitude
59444764.870678
Surface area
2.0401711399506E+15
Volume
3.8113839203497E+22
Height
32357631.513974