Properties of the Number 12315

Twelve Thousand Three Hundred Fifteen

Basics

Value: 12314 → 12315 → 12316

Parity: odd

Prime: No

Previous Prime: 12301

Next Prime: 12323

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 821

Divisors: 1, 3, 5, 15, 821, 2463, 4105, 12315

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000000011011

Octal: 30033

Duodecimal: 7163

Hexadecimal: 301b

Square: 151659225

Square Root: 110.97296968181035

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of integer compositions of n whose maximal runs R all satisfy length(R) < first(R). A389512

Expansion of ∏_k>=1 (1 + (x*(1 - x))^k). A307501

Product of successive primes minus 2. A124669

Smallest number m such that exactly n odd numbers can be seen as proper subsequences of m in decimal representation. A164766

Number of degree 4 number fields unramified outside the first n prime numbers. A368057

a(n) = ∑_{k=0..floor(n/2)} T(n-k,k), T given by A026725. A26735

Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^t+u+v) having one, two, three, four or five distinct values for every i,j,k<=n. A211572

Numbers n such that n!!-8 is prime. A259359

Indices k such that A358128(k) is a square. A358130

a(1) = 3, a(n) = a(n-1) + 4*(a(n-1)-floor(a(n-1)^1/3)³). A96297