20807618 is an even 8-digits composite number following 20807617
and preceding 20807619 . In scientific notation, it is written as 2.0807618 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 9603360 positive integers (up to 20807618) that are relatively prime to 20807618.
20807618 has 12 divisors, whose sum is 33797538
The reverse of 20807618 is 81670802
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred seven thousand six hundred eighteen
Scientific notation
2.0807618 × 10^7
Engineering notation
2.0807618 × 10^6
Prime Factorization
2 × 13 × 13 × 61561
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1600586
Product of the distinct prime numbers
The prime factorization of 20807618 is 2 × 13 × 13 × 61561.
Since it has a total of 4 prime factors.
9 , 2 , 20 , 98 , 991 , 689 , 9574 , 8220 , 57700 , 42011 , 39496 , 1437 , 1118836 , 1901988 , 33620928 , 51325007 , 643356423 , 115502163 , 4568025300 , 3390637724
n×2
41615236
n×3
62422854
n×4
83230472
n×5
104038090
n÷2
10403809
n÷3
6935872.6666667
n÷3
5201904.5
n÷5
4161523.6
n2
432956966833924
n3
9.008803176319E+21
n4
1.8745173513003E+29
n5
3.9004240980229E+36
2 √n
4561.5368024384
3 √n
275.04734391493
4 √n
67.539150145959
5 √n
29.083352909601
1 , 2 , 13 , 26 , 169 , 338 , 61561 , 123122 , 800293 , 1600586 , 10403809 , 20807618
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20807617
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20807618 can be divided by 12 positive divisors.
The sum of these divisors (counting 20807618) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010111111111000010
3
Ternary
1110011010200112
4
Quaternary
1033113333002
5
Quinary
20311320433
6
Senary
2021551322
8
Octal
117277702
10
Decimal
20807618
12
Duodecimal
6b75542
16
Hexadecimal
13d7fc2
20
Vigesimal
6a0j0i
36
Base36
cdz9e
md5
236473d76214a519267768ca714a1590
sha1
3f5504a02dff9bbb8d7ed605bcf7cd1ea4ce838e
sha256
102d3f6c65b813b215f103c9756a7f51097cd457dbad4d3a1375cde20667103f
sha512
143fdf9617c62d06ddc51c4ca2ea1e3f3e74ef5aba0378ce1b4ec57d6843691635e3e7d594b4e243327620828cddfb16e8d424472f074f1da0d0821beb21f70a
ripemd-160
1b533ee8cbf4899e1f7dbe8a5c72c8d228ed3835
Diameter
41615236
Circumference
130738119.69501
Area
1.360174426326E+15
Volume
3.7735986501813E+22
Surface area
5.4406977053039E+15
Circumference
130738119.69501
Perimeter
83230472
Area
432956966833924
Diagonal
29426415.576279
Surface area
2597741801003544
Volume
9.008803176319E+21
Space diagonal
36039851.560485
Perimeter
62422854
Area
1.8747586601182E+14
Altitude
18019925.780242
Surface area
1.8747586601182E+14
Volume
1.0616976360583E+21
Height
9808805.1920928