13811921 is an odd 8-digits composite number following 13811920
and preceding 13811922 . In scientific notation, it is written as 1.3811921 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 13799844 positive integers (up to 13811921) that are relatively prime to 13811921.
13811921 has 4 divisors, whose sum is 13824000
The reverse of 13811921 is 12911831
Previous prime number is 1279
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
thirteen million eight hundred eleven thousand nine hundred twenty-one
Scientific notation
1.3811921 × 10^7
Engineering notation
1.3811921 × 10^6
Prime Factorization
1279 × 10799
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13811921
Product of the distinct prime numbers
The prime factorization of 13811921 is 1279 × 10799.
Since it has a total of 2 prime factors.
7 , 8 , 91 , 35 , 857 , 732 , 6991 , 9728 , 97634 , 69999 , 294393 , 898628 , 124625 , 2289082 , 75305168 , 98915431 , 954948944 , 258253379 , 9430287591 , 2901488079
n×2
27623842
n×3
41435763
n×4
55247684
n×5
69059605
n÷2
6905960.5
n÷3
4603973.6666667
n÷3
3452980.25
n÷5
2762384.2
n2
190769161710241
n3
2.6348885907781E+21
n4
3.6392873059628E+28
n5
5.0265548766261E+35
2 √n
3716.4392905037
3 √n
239.93007801042
4 √n
60.962605673509
5 √n
26.794818347008
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
-13811920
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 13811921 can be divided by 4 positive divisors.
The sum of these divisors (counting 13811921) is 1, the average is 0.25.
Base
System
Value
2
Binary
110100101100000011010001
3
Ternary
221222201101122
4
Quaternary
310230003101
5
Quinary
12013440141
6
Senary
1212012025
8
Octal
64540321
10
Decimal
13811921
12
Duodecimal
4761015
16
Hexadecimal
d2c0d1
20
Vigesimal
4669g1
36
Base36
881ch
md5
d4298fe2fa8b73db3e6ba9b1ee698302
sha1
203110e59ad3ea6356a005dfb486ac5441c77209
sha256
d452bcc303d8b25060efb9d7fb93bde8f7ccbf406753f54f286124ad8ce78451
sha512
4fb318fc7f9787ba80c7e12ad5d17717b1bc5c96931b788051e13ef2786dc2eb127d504ada91d41d3828dc5d755b804260b753ce4172a716b698a1689159e2bc
ripemd-160
17ee222f7ebdfc2b5105388107f2b8d9d6e125fa
Diameter
27623842
Circumference
86782859.091125
Area
5.9931899696038E+14
Volume
1.1036995519755E+22
Surface area
2.3972759878415E+15
Circumference
86782859.091125
Perimeter
55247684
Area
190769161710241
Diagonal
19533006.000626
Surface area
1144614970261446
Volume
2.6348885907781E+21
Space diagonal
23922948.922128
Perimeter
41435763
Area
82605470149865
Altitude
11961474.461064
Surface area
82605470149865
Volume
3.1052459836837E+20
Height
6511002.0002086