12971921 is an odd 8-digits composite number following 12971920
and preceding 12971922 . In scientific notation, it is written as 1.2971921 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 12964644 positive integers (up to 12971921) that are relatively prime to 12971921.
12971921 has 4 divisors, whose sum is 12979200
The reverse of 12971921 is 12917921
Previous prime number is 4159
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million nine hundred seventy-one thousand nine hundred twenty-one
Scientific notation
1.2971921 × 10^7
Engineering notation
1.2971921 × 10^6
Prime Factorization
4159 × 3119
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12971921
Product of the distinct prime numbers
The prime factorization of 12971921 is 4159 × 3119.
Since it has a total of 2 prime factors.
8 , 8 , 83 , 89 , 679 , 211 , 1977 , 2363 , 81270 , 16073 , 74219 , 747178 , 9613469 , 6989469 , 88885288 , 58867115 , 907045109 , 494599842 , 1694304893 , 2669685721
n×2
25943842
n×3
38915763
n×4
51887684
n×5
64859605
n÷2
6485960.5
n÷3
4323973.6666667
n÷3
3242980.25
n÷5
2594384.2
n2
168270734430241
n3
2.1827946736411E+21
n4
2.8315040065693E+28
n5
3.67300462844E+35
2 √n
3601.65531388
3 √n
234.96405667265
4 √n
60.013792697013
5 √n
26.460671367072
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
-12971920
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 12971921 can be divided by 4 positive divisors.
The sum of these divisors (counting 12971921) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001011110111110010001
3
Ternary
220102001010112
4
Quaternary
301132332101
5
Quinary
11310100141
6
Senary
1142011105
8
Octal
61367621
10
Decimal
12971921
12
Duodecimal
4416a95
16
Hexadecimal
c5ef91
20
Vigesimal
4119g1
36
Base36
7q175
md5
93dfd779b0230c4ba439350477b7f512
sha1
8fc812d67581e2febc5b9aa5eb888fca28604f5d
sha256
2f9a2349bc5001cd408767cc21fb7bb42ff8442016452363d01820ce3c274911
sha512
f88a28c02f61a07d955599a2d2ca7c9c76fe2527a5b936255a6c0f22355fe88970cdaed3b40a629d19c4ced056779713c233179a023aa826faaa10855a7e329e
ripemd-160
320fbaba39280c08106f10208e70b69693fca392
Diameter
25943842
Circumference
81504983.433094
Area
5.286381031002E+14
Volume
9.1432689480076E+21
Surface area
2.1145524124008E+15
Circumference
81504983.433094
Perimeter
51887684
Area
168270734430241
Diagonal
18345066.608232
Surface area
1009624406581446
Volume
2.1827946736411E+21
Space diagonal
22468026.24377
Perimeter
38915763
Area
72863365365027
Altitude
11234013.121885
Surface area
72863365365027
Volume
2.5724481927825E+20
Height
6115022.2027441