13231387 is an odd 8-digits composite number following 13231386
and preceding 13231388 . In scientific notation, it is written as 1.3231387 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 12213576 positive integers (up to 13231387) that are relatively prime to 13231387.
13231387 has 4 divisors, whose sum is 14249200
The reverse of 13231387 is 78313231
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirteen million two hundred thirty-one thousand three hundred eighty-seven
Scientific notation
1.3231387 × 10^7
Engineering notation
1.3231387 × 10^6
Prime Factorization
13 × 1017799
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13231387
Product of the distinct prime numbers
The prime factorization of 13231387 is 13 × 1017799.
Since it has a total of 2 prime factors.
1 , 6 , 53 , 32 , 833 , 123 , 3006 , 6522 , 95096 , 48881 , 571498 , 450215 , 2150729 , 5939783 , 5873839 , 54895713 , 119981031 , 56996326 , 785135309 , 4738166788
n×2
26462774
n×3
39694161
n×4
52925548
n×5
66156935
n÷2
6615693.5
n÷3
4410462.3333333
n÷3
3307846.75
n÷5
2646277.4
n2
175069601943769
n3
2.316413655254E+21
n4
3.064936552475E+28
n5
4.0553361656242E+35
2 √n
3637.4973539509
3 √n
236.52031971445
4 √n
60.311668472618
5 √n
26.565688406743
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
-13231386
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 13231387 can be divided by 4 positive divisors.
The sum of these divisors (counting 13231387) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010011110010100011011
3
Ternary
220220020001101
4
Quaternary
302132110123
5
Quinary
11341401022
6
Senary
1151332231
8
Octal
62362433
10
Decimal
13231387
12
Duodecimal
4521077
16
Hexadecimal
c9e51b
20
Vigesimal
42di97
36
Base36
7vlej
md5
4e1ca3cf23397bfbbdc94cd3f51b5c54
sha1
0d79edac7cf68fc5b7e09b2b55347f44590b13e4
sha256
8c887bc45185f40e0ba81220b38fc3fc3a5eb000a0d447ef4e32a65956d5e8f1
sha512
74f6edb32fd7497f99f14186a983a70fe508cc9ee8574e04e561ff101b1a8dc8ec12d1f1ddd625743ca35b96a927c6d503b497074af022734f15f9125bb75cb1
ripemd-160
3695780a42dde238976ace4409f9914ca0d7d329
Diameter
26462774
Circumference
83135256.392007
Area
5.4999737533343E+14
Volume
9.7029708293612E+21
Surface area
2.1999895013337E+15
Circumference
83135256.392007
Perimeter
52925548
Area
175069601943769
Diagonal
18712006.944407
Surface area
1050417611662614
Volume
2.316413655254E+21
Space diagonal
22917434.538606
Perimeter
39694161
Area
75807361356867
Altitude
11458717.269303
Surface area
75807361356867
Volume
2.729919672772E+20
Height
6237335.6481357