13831921 is an odd 8-digits composite number following 13831920
and preceding 13831922 . In scientific notation, it is written as 1.3831921 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 13385700 positive integers (up to 13831921) that are relatively prime to 13831921.
13831921 has 4 divisors, whose sum is 14278144
The reverse of 13831921 is 12913831
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirteen million eight hundred thirty-one thousand nine hundred twenty-one
Scientific notation
1.3831921 × 10^7
Engineering notation
1.3831921 × 10^6
Prime Factorization
31 × 446191
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13831921
Product of the distinct prime numbers
The prime factorization of 13831921 is 31 × 446191.
Since it has a total of 2 prime factors.
4 , 4 , 72 , 47 , 645 , 966 , 3754 , 3658 , 32999 , 72487 , 267412 , 779564 , 1663106 , 2703519 , 2464434 , 34584 , 180942521 , 594612534 , 3875422805 , 5550291714
n×2
27663842
n×3
41495763
n×4
55327684
n×5
69159605
n÷2
6915960.5
n÷3
4610640.3333333
n÷3
3457980.25
n÷5
2766384.2
n2
191322038550241
n3
2.6463513227859E+21
n4
3.660412243502E+28
n5
5.0630532979552E+35
2 √n
3719.1290647139
3 √n
240.04583036805
4 √n
60.98466253669
5 √n
26.802573766981
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
-13831920
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 13831921 can be divided by 4 positive divisors.
The sum of these divisors (counting 13831921) is 1, the average is 0.25.
Base
System
Value
2
Binary
110100110000111011110001
3
Ternary
222000201211101
4
Quaternary
310300323301
5
Quinary
12020110141
6
Senary
1212244401
8
Octal
64607361
10
Decimal
13831921
12
Duodecimal
4770701
16
Hexadecimal
d30ef1
20
Vigesimal
468jg1
36
Base36
88gs1
md5
ccd1bd7d6288741c3bcf74b81c9a9680
sha1
33d704ac8b0eaf47328bf7c7e02f33f4fb6d6cd1
sha256
0ec00c82fad5f45aba73a1c45f4a488c8fdf5f501e966d99a04070842fb9cdb7
sha512
628db9f3ba7de6423393689fa00da50d625ec3581ff1d4fd0cf71089a3ec92c257ddcfe0bb060e07b8d5c566919ac3e8f0b8878dc18ccff7a7ec73c5f20692d4
ripemd-160
f2811899110ae5ae581d5d5f59fb1495f02091ae
Diameter
27663842
Circumference
86908522.797269
Area
6.0105591077926E+14
Volume
1.1085010499309E+22
Surface area
2.404223643117E+15
Circumference
86908522.797269
Perimeter
55327684
Area
191322038550241
Diagonal
19561290.271873
Surface area
1147932231301446
Volume
2.6463513227859E+21
Space diagonal
23957589.938279
Perimeter
41495763
Area
82844872844167
Altitude
11978794.969139
Surface area
82844872844167
Volume
3.1187549429065E+20
Height
6520430.0906244