12643721 (number)

12643721 is an odd 8-digits composite number following 12643720 and preceding 12643722. In scientific notation, it is written as 1.2643721 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 11457072 positive integers (up to 12643721) that are relatively prime to 12643721.

Interesting facts

Basic properties

Name

Name twelve million six hundred forty-three thousand seven hundred twenty-one

Notation

Scientific notation 1.2643721 × 10^7
Engineering notation 1.2643721 × 10^6

Prime Factorization of 12643721

Prime Factorization 437 × 28933

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12643721
Product of the distinct prime numbers

The prime factorization of 12643721 is 437 × 28933. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12643721)

Multiplication

n×y
n×2 25287442
n×3 37931163
n×4 50574884
n×5 63218605

Division

n÷y
n÷2 6321860.5
n÷3 4214573.6666667
n÷3 3160930.25
n÷5 2528744.2

Exponentiation

ny
n2 159863680725841
n3 2.0212717771306E+21
n4 2.5556396415214E+28
n5 3.2312794603936E+35

Nth Root

y√n
2√n 3555.8010349287
3√n 232.96551277221
4√n 59.630537771587
5√n 26.325400122887

Divisors of 12643721

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 -12643720
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 12643721 can be divided by 4 positive divisors. The sum of these divisors (counting 12643721) is 1, the average is 0.25.

Base conversion 12643721

Base System Value
2 Binary 110000001110110110001001
3 Ternary 212210100220222
4 Quaternary 300032312021
5 Quinary 11214044341
6 Senary 1130555425
8 Octal 60166611
10 Decimal 12643721
12 Duodecimal 4298b75
16 Hexadecimal c0ed89
20 Vigesimal 3j0961
36 Base36 7izyh

Cryptographic Hash Functions

md5 da444e8e91e450bacfc91a6158b5f242
sha1 321f9f3b6d7bf8335df56adb7cf4785467a8643b
sha256 26ab134b446dc513f301bac71f1b6fb89aa8b7eee8d47f35c2846a0ba364061b
sha512 15bf9a4193d21e0c0f7d5473134e855a2c7e0f220f50fb57a77e50f79c6906a48f4f5de60d2641bcc159e026da8db23c7f44ebc208d67888ba5dae0f38a39a32
ripemd-160 1cbb42a76948726952f6e9e067538edc81647037

12643721 as geometric shapes

Circle

Radius = n
Diameter 25287442
Circumference 79442842.015278
Area 5.0222656494413E+14

Sphere

Radius = n
Volume 8.4666834212559E+21
Surface area 2.0089062597765E+15
Circumference 79442842.015278

Square

Length = n
Perimeter 50574884
Area 159863680725841
Diagonal 17880921.717062

Cube

Length = n
Surface area 959182084355046
Volume 2.0212717771306E+21
Space diagonal 21899567.168726

Equilateral Triangle

Length = n
Perimeter 37931163
Area 69223004325532
Altitude 10949783.584363

Triangular Pyramid

Length = n
Surface area 69223004325532
Volume 2.3820916337167E+20
Height 5960307.2390205