12897721 is an odd 8-digits composite number following 12897720
and preceding 12897722 . In scientific notation, it is written as 1.2897721 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 12162192 positive integers (up to 12897721) that are relatively prime to 12897721.
12897721 has 8 divisors, whose sum is 13654080
The reverse of 12897721 is 12779821
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million eight hundred ninety-seven thousand seven hundred twenty-one
Scientific notation
1.2897721 × 10^7
Engineering notation
1.2897721 × 10^6
Prime Factorization
43 × 29 × 10343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12897721
Product of the distinct prime numbers
The prime factorization of 12897721 is 43 × 29 × 10343.
Since it has a total of 3 prime factors.
1 , 7 , 21 , 97 , 826 , 8 , 348 , 525 , 31906 , 33445 , 621958 , 625768 , 5157494 , 5662643 , 35082221 , 37842180 , 915666704 , 208792954 , 8055926416 , 3754764963
n×2
25795442
n×3
38693163
n×4
51590884
n×5
64488605
n÷2
6448860.5
n÷3
4299240.3333333
n÷3
3224430.25
n÷5
2579544.2
n2
166351206993841
n3
2.1455514558198E+21
n4
2.7672724068308E+28
n5
3.5691507434302E+35
2 √n
3591.339722165
3 √n
234.51519792148
4 √n
59.927787562741
5 √n
26.430330609529
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
-12897720
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 12897721 can be divided by 8 positive divisors.
The sum of these divisors (counting 12897721) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001100110110111001
3
Ternary
220021021100101
4
Quaternary
301030312321
5
Quinary
11300211341
6
Senary
1140235401
8
Octal
61146671
10
Decimal
12897721
12
Duodecimal
439bb61
16
Hexadecimal
c4cdb9
20
Vigesimal
40c461
36
Base36
7ofy1
md5
6a4b25b4b872f44d388dce2f450ca63f
sha1
251866b728886ab1ae5ef7ec72ace62028feb879
sha256
d446b5e6670cacff4066b7b5f587de7c116c7a3d43b4339e544665ef556882bb
sha512
14aae256e43471255c2271a5625ff2794565392f65c2242ce711220046d1066b10e4d28ed7b1fe56082baee41119c6afb65c52d2a3a06f752bb42b0c19411010
ripemd-160
0f6d3275fd8448ddfb337c51a41f8fa792c75301
Diameter
25795442
Circumference
81038771.083302
Area
5.2260772980765E+14
Volume
8.9872649220032E+21
Surface area
2.0904309192306E+15
Circumference
81038771.083302
Perimeter
51590884
Area
166351206993841
Diagonal
18240131.961904
Surface area
998107241963046
Volume
2.1455514558198E+21
Space diagonal
22339508.073848
Perimeter
38693163
Area
72032185603435
Altitude
11169754.036924
Surface area
72032185603435
Volume
2.5285566396581E+20
Height
6080043.9873014