12961909 is an odd 8-digits composite number following 12961908
and preceding 12961910 . In scientific notation, it is written as 1.2961909 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 12935020 positive integers (up to 12961909) that are relatively prime to 12961909.
12961909 has 4 divisors, whose sum is 12988800
The reverse of 12961909 is 90916921
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million nine hundred sixty-one thousand nine hundred nine
Scientific notation
1.2961909 × 10^7
Engineering notation
1.2961909 × 10^6
Prime Factorization
491 × 26399
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12961909
Product of the distinct prime numbers
The prime factorization of 12961909 is 491 × 26399.
Since it has a total of 2 prime factors.
8 , 5 , 8 , 38 , 783 , 275 , 1760 , 705 , 55281 , 22442 , 488810 , 595504 , 7697378 , 2903994 , 76092746 , 77214711 , 365502337 , 525402328 , 8125333472 , 2587383740
n×2
25923818
n×3
38885727
n×4
51847636
n×5
64809545
n÷2
6480954.5
n÷3
4320636.3333333
n÷3
3240477.25
n÷5
2592381.8
n2
168011084924281
n3
2.1777443937798E+21
n4
2.8227724657434E+28
n5
3.6588519828672E+35
2 √n
3600.2651291259
3 √n
234.90359105564
4 √n
60.002209368705
5 √n
26.456585525519
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
-12961908
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 12961909 can be divided by 4 positive divisors.
The sum of these divisors (counting 12961909) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001011100100001110101
3
Ternary
220101112101201
4
Quaternary
301130201311
5
Quinary
11304240114
6
Senary
1141452501
8
Octal
61344165
10
Decimal
12961909
12
Duodecimal
4411131
16
Hexadecimal
c5c875
20
Vigesimal
4104f9
36
Base36
7pth1
md5
2b1b93bf9eb7427970e63c45892112c9
sha1
4a286e333fadad9f26563562c3148383ba128997
sha256
5cbe0ec28b0940d0beddda071b4528dab57701fc4c8121ed312bffc8d99d6bb3
sha512
804514a4e2a5771ba7229be237812b61c4cf1de066351be681528a5dbe4ec29fd7e8eb58f005dc21438149ce2e2cf2c15398e066eab27d48480a3bdec0c27b34
ripemd-160
7b0149dfdb51f4af10bf6488c10ca88d3d04218e
Diameter
25923818
Circumference
81442076.181799
Area
5.2782239011977E+14
Volume
9.1221143851933E+21
Surface area
2.1112895604791E+15
Circumference
81442076.181799
Perimeter
51847636
Area
168011084924281
Diagonal
18330907.502046
Surface area
1008066509545686
Volume
2.1777443937798E+21
Space diagonal
22450684.951084
Perimeter
38885727
Area
72750933830906
Altitude
11225342.475542
Surface area
72750933830906
Volume
2.5664963808878E+20
Height
6110302.500682