12661921 is an odd 8-digits composite number following 12661920
and preceding 12661922 . In scientific notation, it is written as 1.2661921 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 12654000 positive integers (up to 12661921) that are relatively prime to 12661921.
12661921 has 4 divisors, whose sum is 12669844
The reverse of 12661921 is 12916621
Previous prime number is 2221
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twelve million six hundred sixty-one thousand nine hundred twenty-one
Scientific notation
1.2661921 × 10^7
Engineering notation
1.2661921 × 10^6
Prime Factorization
2221 × 5701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12661921
Product of the distinct prime numbers
The prime factorization of 12661921 is 2221 × 5701.
Since it has a total of 2 prime factors.
6 , 8 , 41 , 95 , 103 , 953 , 8400 , 9542 , 22329 , 80094 , 910780 , 796903 , 3729342 , 5732236 , 26537716 , 64877228 , 112231846 , 972689871 , 8301512919 , 2082922064
n×2
25323842
n×3
37985763
n×4
50647684
n×5
63309605
n÷2
6330960.5
n÷3
4220640.3333333
n÷3
3165480.25
n÷5
2532384.2
n2
160324243410241
n3
2.0300129044452E+21
n4
2.5703863025066E+28
n5
3.2546028301821E+35
2 √n
3558.3593129419
3 √n
233.07723989086
4 √n
59.651984987441
5 √n
26.332974580616
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
-12661920
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 12661921 can be divided by 4 positive divisors.
The sum of these divisors (counting 12661921) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000010011010010100001
3
Ternary
212211021220001
4
Quaternary
300103102201
5
Quinary
11220140141
6
Senary
1131220001
8
Octal
60232241
10
Decimal
12661921
12
Duodecimal
42a7601
16
Hexadecimal
c134a1
20
Vigesimal
3j2eg1
36
Base36
7je01
md5
624de94bec07205d9ef22eb613bcf88a
sha1
52b5d746b078786ad987a515b010bd0968fe27f9
sha256
b43dc9d76e139778b8955d359fe6396f22b39b015c95d484be08fdc96f0de8b5
sha512
0f7014905b58bbcbf1cfab09256c56bef354c052a78704a0682e5d35ddae11ae4701902fb3e1c06979df35987eeedd69b6969bc0e4c14f29d4aa5d64328cb0d8
ripemd-160
1d55576af20084541046a3cfafab040b4bc3f259
Diameter
25323842
Circumference
79557195.987869
Area
5.0367346528995E+14
Volume
8.5032981697302E+21
Surface area
2.0146938611598E+15
Circumference
79557195.987869
Perimeter
50647684
Area
160324243410241
Diagonal
17906660.403897
Surface area
961945460461446
Volume
2.0300129044452E+21
Space diagonal
21931090.493423
Perimeter
37985763
Area
69422433817894
Altitude
10965545.246712
Surface area
69422433817894
Volume
2.392393151049E+20
Height
5968886.8012989