67818921 is an odd 8-digits composite number following 67818920
and preceding 67818922 . In scientific notation, it is written as 6.7818921 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 44692560 positive integers (up to 67818921) that are relatively prime to 67818921.
67818921 has 16 divisors, whose sum is 91472640
The reverse of 67818921 is 12981876
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-seven million eight hundred eighteen thousand nine hundred twenty-one
Scientific notation
6.7818921 × 10^7
Engineering notation
6.7818921 × 10^6
Prime Factorization
3 × 163 × 419 × 331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
67818921
Product of the distinct prime numbers
The prime factorization of 67818921 is 3 × 163 × 419 × 331.
Since it has a total of 4 prime factors.
4 , 7 , 56 , 13 , 714 , 964 , 5874 , 5012 , 80915 , 54117 , 667989 , 206358 , 8149319 , 9727660 , 24388945 , 92745303 , 710860538 , 773509609 , 4675844255 , 1641919786
n×2
135637842
n×3
203456763
n×4
271275684
n×5
339094605
n÷2
33909460.5
n÷3
22606307
n÷3
16954730.25
n÷5
13563784.2
n2
4599406045604241
n3
3.1192675525376E+23
n4
2.1154535972341E+31
n5
1.4346778038998E+39
2 √n
8235.224404957
3 √n
407.80288320418
4 √n
90.748137198276
5 √n
36.835805841481
1 , 3 , 163 , 331 , 419 , 489 , 993 , 1257 , 53953 , 68297 , 138689 , 161859 , 204891 , 416067 , 22606307 , 67818921
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
-67818920
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 67818921 can be divided by 16 positive divisors.
The sum of these divisors (counting 67818921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000010101101010110101001
3
Ternary
11201121120001220
4
Quaternary
10002231112221
5
Quinary
114330201141
6
Senary
10421332253
8
Octal
402552651
10
Decimal
67818921
12
Duodecimal
1a867089
16
Hexadecimal
40ad5a9
20
Vigesimal
113h761
36
Base36
14dlex
md5
12c3d2db2f9998d37f0625ec3f71fd92
sha1
3d0408302c73df29aec4f21e656abaf402745290
sha256
3b962e24a08b33ab6cbf864ab3f41a27f8d5c6d127c157b2e5f5dd2584ad2e88
sha512
a8eb40e719c2bffe50c09bc04b7fc3c8ef0e08fc61c3de65ae7532456f9ef5664cddc4f5565145a1bf295c8a5a4af678bac6c4d0ccfbaa7272fc6226a6474c25
ripemd-160
1e6e87e37703879759b26e85f049a6f32e5fe404
Diameter
135637842
Circumference
426118847.97597
Area
1.4449460243747E+16
Volume
1.3065957370177E+24
Surface area
5.7797840974987E+16
Circumference
426118847.97597
Perimeter
271275684
Area
4599406045604241
Diagonal
95910437.86371
Surface area
27596436273625446
Volume
3.1192675525376E+23
Space diagonal
117465816.8865
Perimeter
203456763
Area
1.9916012389065E+15
Altitude
58732908.44325
Surface area
1.9916012389065E+15
Volume
3.6760920645575E+22
Height
31970145.95457