13811985 is an odd 8-digits composite number following 13811984
and preceding 13811986 . In scientific notation, it is written as 1.3811985 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 6552000 positive integers (up to 13811985) that are relatively prime to 13811985.
13811985 has 16 divisors, whose sum is 14902272
The reverse of 13811985 is 58911831
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
thirteen million eight hundred eleven thousand nine hundred eighty-five
Scientific notation
1.3811985 × 10^7
Engineering notation
1.3811985 × 10^6
Prime Factorization
55 × 27 × 131 × 71
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
13811985
Product of the distinct prime numbers
The prime factorization of 13811985 is 55 × 27 × 131 × 71.
Since it has a total of 4 prime factors.
5 , 4 , 20 , 56 , 973 , 604 , 4383 , 7406 , 52861 , 28995 , 682134 , 471760 , 8386499 , 9934943 , 41578014 , 54492705 , 298470990 , 478183867 , 3560780135 , 7268634635
n×2
27623970
n×3
41435955
n×4
55247940
n×5
69059925
n÷2
6905992.5
n÷3
4603995
n÷3
3452996.25
n÷5
2762397
n2
190770929640225
n3
2.6349252186268E+21
n4
3.6393547595796E+28
n5
5.0266713348992E+35
2 √n
3716.447900886
3 √n
239.93044859612
4 √n
60.962676293664
5 √n
26.794843178676
1 , 27 , 55 , 71 , 131 , 1485 , 1917 , 3537 , 3905 , 7205 , 9301 , 105435 , 194535 , 251127 , 511555 , 13811985
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
-13811984
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 13811985 can be divided by 16 positive divisors.
The sum of these divisors (counting 13811985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110100101100000100010001
3
Ternary
221222201111000
4
Quaternary
310230010101
5
Quinary
12013440420
6
Senary
1212012213
8
Octal
64540421
10
Decimal
13811985
12
Duodecimal
4761069
16
Hexadecimal
d2c111
20
Vigesimal
4669j5
36
Base36
881e9
md5
faf2116906a17a62d3cb63a10692bad6
sha1
7922d966f30b155748c41f11447acf36bc314aef
sha256
8f785dd3be10b82eab9b2a8410697f8cde5f98ca3cf4836654656c6efddd464c
sha512
5e32c422aa90e0459d489b7270e0e3fafd330cf7d91ca4f739fdeb143473a0f5b9f82b21c6ccd73192cc7d84a41b6a5916ff2ef4a35aeef25aa2b67deaec5028
ripemd-160
4e7e9a9778ce6bfc8cc82572e0de6360e2bc0df1
Diameter
27623970
Circumference
86783261.214985
Area
5.9932455107623E+14
Volume
1.1037148946129E+22
Surface area
2.3972982043049E+15
Circumference
86783261.214985
Perimeter
55247940
Area
190770929640225
Diagonal
19533096.510294
Surface area
1144625577841350
Volume
2.6349252186268E+21
Space diagonal
23923059.773379
Perimeter
41435955
Area
82606235686004
Altitude
11961529.88669
Surface area
82606235686004
Volume
3.1052891500175E+20
Height
6511032.1700979