12897721 (number)

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.

Interesting facts

Basic properties

Name

Name twelve million eight hundred ninety-seven thousand seven hundred twenty-one

Notation

Scientific notation 1.2897721 × 10^7
Engineering notation 1.2897721 × 10^6

Prime Factorization of 12897721

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.

Most popular turbo-numbers

Basic calculations (n = 12897721)

Multiplication

n×y
n×2 25795442
n×3 38693163
n×4 51590884
n×5 64488605

Division

n÷y
n÷2 6448860.5
n÷3 4299240.3333333
n÷3 3224430.25
n÷5 2579544.2

Exponentiation

ny
n2 166351206993841
n3 2.1455514558198E+21
n4 2.7672724068308E+28
n5 3.5691507434302E+35

Nth Root

y√n
2√n 3591.339722165
3√n 234.51519792148
4√n 59.927787562741
5√n 26.430330609529

Divisors of 12897721

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 conversion 12897721

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

Cryptographic Hash Functions

md5 6a4b25b4b872f44d388dce2f450ca63f
sha1 251866b728886ab1ae5ef7ec72ace62028feb879
sha256 d446b5e6670cacff4066b7b5f587de7c116c7a3d43b4339e544665ef556882bb
sha512 14aae256e43471255c2271a5625ff2794565392f65c2242ce711220046d1066b10e4d28ed7b1fe56082baee41119c6afb65c52d2a3a06f752bb42b0c19411010
ripemd-160 0f6d3275fd8448ddfb337c51a41f8fa792c75301

12897721 as geometric shapes

Circle

Radius = n
Diameter 25795442
Circumference 81038771.083302
Area 5.2260772980765E+14

Sphere

Radius = n
Volume 8.9872649220032E+21
Surface area 2.0904309192306E+15
Circumference 81038771.083302

Square

Length = n
Perimeter 51590884
Area 166351206993841
Diagonal 18240131.961904

Cube

Length = n
Surface area 998107241963046
Volume 2.1455514558198E+21
Space diagonal 22339508.073848

Equilateral Triangle

Length = n
Perimeter 38693163
Area 72032185603435
Altitude 11169754.036924

Triangular Pyramid

Length = n
Surface area 72032185603435
Volume 2.5285566396581E+20
Height 6080043.9873014