68279985 is an odd 8-digits composite number following 68279984
and preceding 68279986 . In scientific notation, it is written as 6.8279985 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 33872256 positive integers (up to 68279985) that are relatively prime to 68279985.
68279985 has 16 divisors, whose sum is 74842368
The reverse of 68279985 is 58997286
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
sixty-eight million two hundred seventy-nine thousand nine hundred eighty-five
Scientific notation
6.8279985 × 10^7
Engineering notation
6.8279985 × 10^6
Prime Factorization
23 × 45 × 37 × 1783
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68279985
Product of the distinct prime numbers
The prime factorization of 68279985 is 23 × 45 × 37 × 1783.
Since it has a total of 4 prime factors.
7 , 7 , 9 , 53 , 267 , 675 , 6602 , 8455 , 8308 , 62975 , 446160 , 154945 , 876652 , 2856814 , 90586257 , 64385127 , 893549372 , 683588065 , 3310098657 , 8169489259
n×2
136559970
n×3
204839955
n×4
273119940
n×5
341399925
n÷2
34139992.5
n÷3
22759995
n÷3
17069996.25
n÷5
13655997
n2
4662156351600225
n3
3.1833196575492E+23
n4
2.1735701846766E+31
n5
1.4841133960617E+39
2 √n
8263.1703964035
3 √n
408.72494024746
4 √n
90.901982356842
5 √n
36.885755519692
1 , 23 , 37 , 45 , 851 , 1035 , 1665 , 1783 , 38295 , 41009 , 65971 , 80235 , 1517333 , 1845405 , 2968695 , 68279985
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
-68279984
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 68279985 can be divided by 16 positive divisors.
The sum of these divisors (counting 68279985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000100011101111010110001
3
Ternary
11202110222112100
4
Quaternary
10010131322301
5
Quinary
114434424420
6
Senary
10435251013
8
Octal
404357261
10
Decimal
68279985
12
Duodecimal
1aa49a69
16
Hexadecimal
411deb1
20
Vigesimal
116ejj5
36
Base36
14nh69
md5
06c4f37050077574edc681e55a4f32f1
sha1
b55261f9d929e10a8046f4b7d8114e9db76dd96a
sha256
eb087582fe1b7c318d01250e228cb283d86afd8ce09ef4ae642987db532b5638
sha512
c092aeec8fbc371b94216d5562ddaab6da8a01dc4daa0249d9c7ab1a941cbc910a4632ca5b7685f8964869e247bcbe7413741355588ec1c723d42833bb35a0be
ripemd-160
4740085d9826930ebfe909d448414abdc02e5a7c
Diameter
136559970
Circumference
429015798.52644
Area
1.4646596144074E+16
Volume
1.3334258200246E+24
Surface area
5.8586384576297E+16
Circumference
429015798.52644
Perimeter
273119940
Area
4662156351600225
Diagonal
96562480.825631
Surface area
27972938109601350
Volume
3.1833196575492E+23
Space diagonal
118264403.16004
Perimeter
204839955
Area
2.0187729184504E+15
Altitude
59132201.58002
Surface area
2.0187729184504E+15
Volume
3.7515781942291E+22
Height
32187493.608544