12920991 is an odd 8-digits composite number following 12920990
and preceding 12920992 . In scientific notation, it is written as 1.2920991 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 8605440 positive integers (up to 12920991) that are relatively prime to 12920991.
12920991 has 8 divisors, whose sum is 17245104
The reverse of 12920991 is 19902921
Previous prime number is 1621
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million nine hundred twenty thousand nine hundred ninety-one
Scientific notation
1.2920991 × 10^7
Engineering notation
1.2920991 × 10^6
Prime Factorization
3 × 1621 × 2657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12920991
Product of the distinct prime numbers
The prime factorization of 12920991 is 3 × 1621 × 2657.
Since it has a total of 3 prime factors.
2 , 4 , 16 , 62 , 928 , 901 , 1130 , 7988 , 21899 , 75166 , 379994 , 446166 , 5604265 , 3968774 , 83152761 , 87359234 , 547261167 , 421827917 , 2162840396 , 7451092441
n×2
25841982
n×3
38762973
n×4
51683964
n×5
64604955
n÷2
6460495.5
n÷3
4306997
n÷3
3230247.75
n÷5
2584198.2
n2
166952008422081
n3
2.1571853982536E+21
n4
2.7872973116167E+28
n5
3.6014643477723E+35
2 √n
3594.5780002665
3 √n
234.65615021348
4 √n
59.954799643286
5 √n
26.439860826796
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12920990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12920991 can be divided by 8 positive divisors.
The sum of these divisors (counting 12920991) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010010100010011111
3
Ternary
220022110021020
4
Quaternary
301102202133
5
Quinary
11301432431
6
Senary
1140535223
8
Octal
61224237
10
Decimal
12920991
12
Duodecimal
43b1513
16
Hexadecimal
c5289f
20
Vigesimal
40f29b
36
Base36
7oxwf
md5
c304a6a5862b789528975d9ea35869c2
sha1
2420f0a68559d15693b1a71e6ee8d712812bb44c
sha256
ea556d020493f94d3592fa5cfc8b6ef1fe09e9549af5649cd2c0a161884aea8d
sha512
0c2331bb0bdd8c29659418335b8e8a89cb055f72a75ef8fec4f9b7947c377950e73aa0f6c5407e344d4561b96bfafd97962988b01ac522d0a252963e5a7b9dcf
ripemd-160
d284f17148b220d32e8490c37fa07abd2614c8f3
Diameter
25841982
Circumference
81184980.8054
Area
5.2449520316087E+14
Volume
9.035997066113E+21
Surface area
2.0979808126435E+15
Circumference
81184980.8054
Perimeter
51683964
Area
166952008422081
Diagonal
18273040.711501
Surface area
1001712050532486
Volume
2.1571853982536E+21
Space diagonal
22379812.89614
Perimeter
38762973
Area
72292340253178
Altitude
11189906.44807
Surface area
72292340253178
Volume
2.5422673723029E+20
Height
6091013.5705002