Properties of the Number 12431

Twelve Thousand Four Hundred Thirty-One

Basics

Value: 12430 → 12431 → 12432

Parity: odd

Prime: No

Previous Prime: 12421

Next Prime: 12433

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 31 × 401

Divisors: 1, 31, 401, 12431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010001111

Octal: 30217

Duodecimal: 723B

Hexadecimal: 308f

Square: 154529761

Square Root: 111.4943944779288

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

Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice. A5902

Numbers k such that the fractional part of (3/2)^k is less than 1/k. A153662

Trajectory of n under the Reverse and Add! operation carried out in base 4 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n. A75421

Number of distinct values taken by 6⁶^...⁶ (with n 6's and parentheses inserted in all possible ways). A145546

Numbers that cannot be written as a difference of 11-smooth numbers. A326319

a(n) = n⁴ + 2·n³ + 4·n² + 3·n + 1 = ((n+1)⁵+n⁵) / (2·n+1). A72025

Sum of first n 5-almost primes. A86047

Initial pile sizes which guarantee a win for player 2 in a certain variant of Nim. A16741

Numbers k such that A055079(k) = 2^k. A57838

Number of partitions of n such that (number of distinct parts) = number of 1s. A239960