12791891 is an odd 8-digits composite number following 12791890
and preceding 12791892 . In scientific notation, it is written as 1.2791891 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 10964436 positive integers (up to 12791891) that are relatively prime to 12791891.
12791891 has 6 divisors, whose sum is 14880420
The reverse of 12791891 is 19819721
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million seven hundred ninety-one thousand eight hundred ninety-one
Scientific notation
1.2791891 × 10^7
Engineering notation
1.2791891 × 10^6
Prime Factorization
7 × 7 × 261059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1827413
Product of the distinct prime numbers
The prime factorization of 12791891 is 7 × 7 × 261059.
Since it has a total of 3 prime factors.
5 , 4 , 20 , 86 , 593 , 250 , 3439 , 5248 , 9485 , 57507 , 901433 , 408643 , 2600465 , 594782 , 97727442 , 83915171 , 635417197 , 79309479 , 6170704036 , 2264830639
n×2
25583782
n×3
38375673
n×4
51167564
n×5
63959455
n÷2
6395945.5
n÷3
4263963.6666667
n÷3
3197972.75
n÷5
2558378.2
n2
163632475355881
n3
2.0931687888126E+21
n4
2.6775586991093E+28
n5
3.4251039025108E+35
2 √n
3576.5753172553
3 √n
233.8720109973
4 √n
59.804475729291
5 √n
26.386813652302
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12791890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12791891 can be divided by 6 positive divisors.
The sum of these divisors (counting 12791891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110000110011000001010011
3
Ternary
220001220011202
4
Quaternary
300303001103
5
Quinary
11233320031
6
Senary
1134101415
8
Octal
60630123
10
Decimal
12791891
12
Duodecimal
434a86b
16
Hexadecimal
c33053
20
Vigesimal
3jijeb
36
Base36
7m6ab
md5
bcab8ed54a88fcea11343b3cdb3c718c
sha1
6b7f9c944c029a7d3d3d9f42ac4adc9a0bfee40f
sha256
1e37d9760847b1a7d9859c52d4a3fcb74989d58f0113afbd2d11462a2de12e1e
sha512
d1d8ec3af0c63a0f61508bf2d6bcb7e7e4bfa6514c760ce5ebc85915d3126e8b76e7a3d27b91e2a68818cb6f5ca0d97ba607cc60d0769afde1447539a857c10e
ripemd-160
fc033240386262c6c84b05f971a5a9dfd4ceb545
Diameter
25583782
Circumference
80373821.582243
Area
5.1406658246675E+14
Volume
8.7678449195429E+21
Surface area
2.056266329867E+15
Circumference
80373821.582243
Perimeter
51167564
Area
163632475355881
Diagonal
18090465.740598
Surface area
981794852135286
Volume
2.0931687888126E+21
Space diagonal
22156205.136883
Perimeter
38375673
Area
70854940271162
Altitude
11078102.568442
Surface area
70854940271162
Volume
2.4668230745624E+20
Height
6030155.2468661