12721838 is an even 8-digits composite number following 12721837
and preceding 12721839 . In scientific notation, it is written as 1.2721838 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 6289360 positive integers (up to 12721838) that are relatively prime to 12721838.
12721838 has 8 divisors, whose sum is 19297440
The reverse of 12721838 is 83812721
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million seven hundred twenty-one thousand eight hundred thirty-eight
Scientific notation
1.2721838 × 10^7
Engineering notation
1.2721838 × 10^6
Prime Factorization
2 × 89 × 71471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12721838
Product of the distinct prime numbers
The prime factorization of 12721838 is 2 × 89 × 71471.
Since it has a total of 3 prime factors.
1 , 8 , 98 , 5 , 919 , 518 , 3802 , 2059 , 9429 , 7212 , 558502 , 920915 , 9122074 , 6324110 , 56713652 , 96168232 , 350335511 , 446546187 , 7047948884 , 6507715609
n×2
25443676
n×3
38165514
n×4
50887352
n×5
63609190
n÷2
6360919
n÷3
4240612.6666667
n÷3
3180459.5
n÷5
2544367.6
n2
161845162098244
n3
2.0589679332976E+21
n4
2.6193856494607E+28
n5
3.3323399891964E+35
2 √n
3566.7685655226
3 √n
233.44430684973
4 √n
59.722429333732
5 √n
26.357849397062
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
-12721837
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 12721838 can be divided by 8 positive divisors.
The sum of these divisors (counting 12721838) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000100001111010101110
3
Ternary
212221100002012
4
Quaternary
300201322232
5
Quinary
11224044323
6
Senary
1132401222
8
Octal
60417256
10
Decimal
12721838
12
Duodecimal
4316212
16
Hexadecimal
c21eae
20
Vigesimal
3ja4bi
36
Base36
7ko8e
md5
48e21e342b80c34de4523cacbdd417fb
sha1
1441871dd0c345b0b6df76fc70e1be7cc894602b
sha256
c48157a65168f553d37c656fe2be0c1a73d84c5172af683601850cbaff65f9c9
sha512
06cf17d1a26960c6a67ff94eb07a30b7da5d7bbd22b07e39a64ed559eebb1c63b1bf05494b16caf3c9af06cf90b931982b2f8a4c0cf8254382bc2b2500a662ae
ripemd-160
7ebad20fdc6d5e1cc8969544d8bc630e4d77d194
Diameter
25443676
Circumference
79933665.601919
Area
5.0845157226689E+14
Volume
8.6245847109663E+21
Surface area
2.0338062890676E+15
Circumference
79933665.601919
Perimeter
50887352
Area
161845162098244
Diagonal
17991395.837913
Surface area
971070972589464
Volume
2.0589679332976E+21
Space diagonal
22034869.78166
Perimeter
38165514
Area
70081010928345
Altitude
11017434.89083
Surface area
70081010928345
Volume
2.4265169798006E+20
Height
5997131.9459711