67685721 is an odd 8-digits composite number following 67685720
and preceding 67685722 . In scientific notation, it is written as 6.7685721 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 42349824 positive integers (up to 67685721) that are relatively prime to 67685721.
67685721 has 16 divisors, whose sum is 95825664
The reverse of 67685721 is 12758676
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-seven million six hundred eighty-five thousand seven hundred twenty-one
Scientific notation
6.7685721 × 10^7
Engineering notation
6.7685721 × 10^6
Prime Factorization
3 × 17 × 397 × 3343
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
67685721
Product of the distinct prime numbers
The prime factorization of 67685721 is 3 × 17 × 397 × 3343.
Since it has a total of 4 prime factors.
6 , 10 , 38 , 47 , 929 , 809 , 8582 , 9061 , 56087 , 54153 , 722883 , 837238 , 6843129 , 4607919 , 25687888 , 5521054 , 595158333 , 862613678 , 888587956 , 2673268840
n×2
135371442
n×3
203057163
n×4
270742884
n×5
338428605
n÷2
33842860.5
n÷3
22561907
n÷3
16921430.25
n÷5
13537144.2
n2
4581356827289841
n3
3.1009244001339E+23
n4
2.0988830378955E+31
n5
1.4206441171463E+39
2 √n
8227.1332188071
3 √n
407.53572597563
4 √n
90.703545789606
5 √n
36.821324960661
1 , 3 , 17 , 51 , 397 , 1191 , 3343 , 6749 , 10029 , 20247 , 56831 , 170493 , 1327171 , 3981513 , 22561907 , 67685721
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
-67685720
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 67685721 can be divided by 16 positive divisors.
The sum of these divisors (counting 67685721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000010001100110101011001
3
Ternary
11201100210100120
4
Quaternary
10002030311121
5
Quinary
114311420341
6
Senary
10414423453
8
Octal
402146531
10
Decimal
67685721
12
Duodecimal
1a801b89
16
Hexadecimal
408cd59
20
Vigesimal
1130e61
36
Base36
14aqmx
md5
956c22a76210647dbfb944a70a7a4fbd
sha1
3bb2012aeaddd9d79cf7277da9fa61df48b57b7a
sha256
bd5a28d6017dd0ab4ced770049bc0dc687c7a51b8eb193285c36950296fb3b88
sha512
2c0fd4ff1d13c14ea026bd347ebabea5af1f7b4542760bc4856fc01dcb02abae937cc337ea2d09bdeff8fde65eb910e8075b3552b44f72849237d6f8ff5f93f1
ripemd-160
a567d8bbf4694a2f5e7804bf960ca1b738502f3c
Diameter
135371442
Circumference
425281927.69306
Area
1.4392756952087E+16
Volume
1.2989121753064E+24
Surface area
5.7571027808349E+16
Circumference
425281927.69306
Perimeter
270742884
Area
4581356827289841
Diagonal
95722064.617201
Surface area
27488140963739046
Volume
3.1009244001339E+23
Space diagonal
117235107.71893
Perimeter
203057163
Area
1.9837856981171E+15
Altitude
58617553.859466
Surface area
1.9837856981171E+15
Volume
3.6544744521358E+22
Height
31907354.8724