12831721 (number)

12831721 is an odd 8-digits composite number following 12831720 and preceding 12831722. In scientific notation, it is written as 1.2831721 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 10847520 positive integers (up to 12831721) that are relatively prime to 12831721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.2831721 × 10^7
Engineering notation 1.2831721 × 10^6

Prime Factorization of 12831721

Prime Factorization 7 × 73 × 25111

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12831721
Product of the distinct prime numbers

The prime factorization of 12831721 is 7 × 73 × 25111. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12831721)

Multiplication

n×y
n×2 25663442
n×3 38495163
n×4 51326884
n×5 64158605

Division

n÷y
n÷2 6415860.5
n÷3 4277240.3333333
n÷3 3207930.25
n÷5 2566344.2

Exponentiation

ny
n2 164653063821841
n3 2.1127821767571E+21
n4 2.7110631425919E+28
n5 3.4787605859123E+35

Nth Root

y√n
2√n 3582.1391653592
3√n 234.11449458187
4√n 59.85097464001
5√n 26.403225303223

Divisors of 12831721

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 -12831720
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 12831721 can be divided by 8 positive divisors. The sum of these divisors (counting 12831721) is 1, the average is 0.125.

Base conversion 12831721

Base System Value
2 Binary 110000111100101111101001
3 Ternary 220010220210221
4 Quaternary 300330233221
5 Quinary 11241103341
6 Senary 1135010041
8 Octal 60745751
10 Decimal 12831721
12 Duodecimal 4369921
16 Hexadecimal c3cbe9
20 Vigesimal 403j61
36 Base36 7n10p

Cryptographic Hash Functions

md5 4204086000fb80a6e5ce43843c2e8691
sha1 a8d9b647d17f4fb98f1d497153682c39fe459ebc
sha256 25d1a1032034dffa2a589d25331b62a68ff769c4392521ca6d5e25f059c5ef90
sha512 3bc0983e1de6905da386c25d4639657d98efd044088e056f409d57d6b8269eb1600d4cbe3480470a337d76cda5de7c6105320214361e6e8781d876a3aac57915
ripemd-160 8eb6b8331021c5a77a178016ac2f24c881d6995e

12831721 as geometric shapes

Circle

Radius = n
Diameter 25663442
Circumference 80624080.853028
Area 5.1727285569375E+14

Sphere

Radius = n
Volume 8.8500012868472E+21
Surface area 2.069091422775E+15
Circumference 80624080.853028

Square

Length = n
Perimeter 51326884
Area 164653063821841
Diagonal 18146793.866788

Cube

Length = n
Surface area 987918382931046
Volume 2.1127821767571E+21
Space diagonal 22225192.720549

Equilateral Triangle

Length = n
Perimeter 38495163
Area 71296868040327
Altitude 11112596.360274

Triangular Pyramid

Length = n
Surface area 71296868040327
Volume 2.489937673925E+20
Height 6048931.2889292