12908191 is an odd 8-digits composite number following 12908190
and preceding 12908192 . In scientific notation, it is written as 1.2908191 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 12899872 positive integers (up to 12908191) that are relatively prime to 12908191.
12908191 has 4 divisors, whose sum is 12916512
The reverse of 12908191 is 19180921
Previous prime number is 6257
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million nine hundred eight thousand one hundred ninety-one
Scientific notation
1.2908191 × 10^7
Engineering notation
1.2908191 × 10^6
Prime Factorization
6257 × 2063
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12908191
Product of the distinct prime numbers
The prime factorization of 12908191 is 6257 × 2063.
Since it has a total of 2 prime factors.
5 , 5 , 59 , 42 , 612 , 679 , 144 , 7939 , 17207 , 50738 , 639991 , 322481 , 3153872 , 6844420 , 28852781 , 81872781 , 891476210 , 259446837 , 7113138397 , 4887079139
n×2
25816382
n×3
38724573
n×4
51632764
n×5
64540955
n÷2
6454095.5
n÷3
4302730.3333333
n÷3
3227047.75
n÷5
2581638.2
n2
166621394892481
n3
2.1507807899586E+21
n4
2.7762689235916E+28
n5
3.5836609533085E+35
2 √n
3592.7970997539
3 √n
234.57863832879
4 √n
59.939945777035
5 √n
26.434620293731
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
-12908190
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 12908191 can be divided by 4 positive divisors.
The sum of these divisors (counting 12908191) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001111011010011111
3
Ternary
220021210201011
4
Quaternary
301033122133
5
Quinary
11301030231
6
Senary
1140400051
8
Octal
61173237
10
Decimal
12908191
12
Duodecimal
43a6027
16
Hexadecimal
c4f69f
20
Vigesimal
40da9b
36
Base36
7oo0v
md5
75af39bf91415f260a8130c350a53f36
sha1
1b06e04ca8c0d2dc9b147c661350d71e5c1eaaa5
sha256
dc87ef58d714089685490b90a98f590bbafdc7aec40db22d6810d0ede2c7f23f
sha512
2512afc621882c31bb875e76a7c57e6361cc12e62f40925a0b18b0b7a6d680fec94d628e3b7cf6799fc19cf0027a733cc71dd610aea8337ff891bd007326ad4e
ripemd-160
1bb311b5fb90ba38bf4366ba3912979f11977088
Diameter
25816382
Circumference
81104556.033468
Area
5.234565501251E+14
Volume
9.0091695056212E+21
Surface area
2.0938262005004E+15
Circumference
81104556.033468
Perimeter
51632764
Area
166621394892481
Diagonal
18254938.777902
Surface area
999728369354886
Volume
2.1507807899586E+21
Space diagonal
22357642.645803
Perimeter
38724573
Area
72149180395444
Altitude
11178821.322902
Surface area
72149180395444
Volume
2.5347194690424E+20
Height
6084979.5926341