12721894 is an even 8-digits composite number following 12721893
and preceding 12721895 . In scientific notation, it is written as 1.2721894 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 5997600 positive integers (up to 12721894) that are relatively prime to 12721894.
12721894 has 8 divisors, whose sum is 19101888
The reverse of 12721894 is 49812721
Previous prime number is 1247
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million seven hundred twenty-one thousand eight hundred ninety-four
Scientific notation
1.2721894 × 10^7
Engineering notation
1.2721894 × 10^6
Prime Factorization
2 × 1247 × 5101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12721894
Product of the distinct prime numbers
The prime factorization of 12721894 is 2 × 1247 × 5101.
Since it has a total of 3 prime factors.
4 , 10 , 7 , 77 , 919 , 20 , 3996 , 5787 , 79413 , 97626 , 888990 , 358267 , 2453262 , 347828 , 46716085 , 57389565 , 163975827 , 912967990 , 6631946906 , 2025726644
n×2
25443788
n×3
38165682
n×4
50887576
n×5
63609470
n÷2
6360947
n÷3
4240631.3333333
n÷3
3180473.5
n÷5
2544378.8
n2
161846586947236
n3
2.0589951234045E+21
n4
2.6194317706469E+28
n5
3.3324133326402E+35
2 √n
3566.776415757
3 √n
233.44464938048
4 √n
59.72249505636
5 √n
26.357872601838
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
-12721893
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 12721894 can be divided by 8 positive divisors.
The sum of these divisors (counting 12721894) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000100001111011100110
3
Ternary
212221100011021
4
Quaternary
300201323212
5
Quinary
11224100034
6
Senary
1132401354
8
Octal
60417346
10
Decimal
12721894
12
Duodecimal
431625a
16
Hexadecimal
c21ee6
20
Vigesimal
3ja4ee
36
Base36
7ko9y
md5
45107345bb94bd050a551506cf4aeac0
sha1
6fa3645aec2d37772571ec73cba50535087bfe71
sha256
9c664afc15dc5489fd16926996e037fee5b2aa2750d2aa223c0d2c6e7b41249b
sha512
1c829967ee58fe8a7079e4e02f87b001aa3ce71f49d27381cc8fd585a66cb65d36c164a6f76f323652304f5df230edbf57b5e79b776398b1aa58c103844dc50c
ripemd-160
4f0db6d7a2511d27ecf19ddeb24ed3609eaf6e4a
Diameter
25443788
Circumference
79934017.460296
Area
5.0845604856202E+14
Volume
8.6246986046198E+21
Surface area
2.0338241942481E+15
Circumference
79934017.460296
Perimeter
50887576
Area
161846586947236
Diagonal
17991475.033873
Surface area
971079521683416
Volume
2.0589951234045E+21
Space diagonal
22034966.776506
Perimeter
38165682
Area
70081627906057
Altitude
11017483.388253
Surface area
70081627906057
Volume
2.4265490236489E+20
Height
5997158.3446243