68281609 is an odd 8-digits composite number following 68281608
and preceding 68281610 . In scientific notation, it is written as 6.8281609 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 62074180 positive integers (up to 68281609) that are relatively prime to 68281609.
68281609 has 4 divisors, whose sum is 74489040
The reverse of 68281609 is 90618286
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-eight million two hundred eighty-one thousand six hundred nine
Scientific notation
6.8281609 × 10^7
Engineering notation
6.8281609 × 10^6
Prime Factorization
11 × 6207419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68281609
Product of the distinct prime numbers
The prime factorization of 68281609 is 11 × 6207419.
Since it has a total of 2 prime factors.
6 , 6 , 9 , 32 , 16 , 878 , 8272 , 1760 , 31322 , 33169 , 230661 , 226618 , 4369721 , 8337995 , 29057646 , 70136081 , 804862227 , 257881091 , 4071425901 , 419585209
n×2
136563218
n×3
204844827
n×4
273126436
n×5
341408045
n÷2
34140804.5
n÷3
22760536.333333
n÷3
17070402.25
n÷5
13656321.8
n2
4662378127628881
n3
3.1835468032091E+23
n4
2.1737769804992E+31
n5
1.4842898983565E+39
2 √n
8263.2686631865
3 √n
408.72818065064
4 √n
90.902522864806
5 √n
36.8859309793
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
-68281608
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 68281609 can be divided by 4 positive divisors.
The sum of these divisors (counting 68281609) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000100011110010100001001
3
Ternary
11202111001202111
4
Quaternary
10010132110021
5
Quinary
114440002414
6
Senary
10435302321
8
Octal
404362411
10
Decimal
68281609
12
Duodecimal
1aa4a9a1
16
Hexadecimal
411e509
20
Vigesimal
116f409
36
Base36
14nifd
md5
5cbab9fc992bc7adbee8a10756b905a8
sha1
721ff91dc8576ca31795b8a835ca9ea27ff8a6c7
sha256
3735b2369590c33782c244034637480cbd715f56712507e131a84b1e04af7c8f
sha512
a8b35e9961102eb79f478ed46079fcf7df5c7343027d1038cb32ac2b272ee3ffab6dc2bcd058a4905749f54c2af346ce570e64b919dfda4d6dc9a62abb8f07a3
ripemd-160
0757222b354aee62f409e308f4c667b35a724c1a
Diameter
136563218
Circumference
429026002.41938
Area
1.4647292874017E+16
Volume
1.3335209665761E+24
Surface area
5.8589171496067E+16
Circumference
429026002.41938
Perimeter
273126436
Area
4662378127628881
Diagonal
96564777.508457
Surface area
27974268765773286
Volume
3.1835468032091E+23
Space diagonal
118267216.01055
Perimeter
204844827
Area
2.0188689502878E+15
Altitude
59133608.005276
Surface area
2.0188689502878E+15
Volume
3.7518458879565E+22
Height
32188259.169486