Properties of the Number 11439

Eleven Thousand Four Hundred Thirty-Nine

Basics

Value: 11438 → 11439 → 11440

Parity: odd

Prime: No

Previous Prime: 11437

Next Prime: 11443

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 31 × 41

Divisors: 1, 3, 9, 31, 41, 93, 123, 279, 369, 1271

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010101111

Octal: 26257

Duodecimal: 6753

Hexadecimal: 2caf

Square: 130850721

Square Root: 106.95326081985533

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 partitions of n that sorted in increasing order do not contain a part k in position k. A238394

Vampire numbers: (definition 1): n has a nontrivial factorization using n's digits. A20342

a(n) = (n + 3)*(n² + 6·n + 2)/6. A5286

Number of partitions of n having no parts with multiplicity 7. A184642

One less than number of n-multisets chosen from a 10-set. A35927

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. A300138

a(1) = 3, a(n) = least k such that concatenation of n copies of k with all previous concatenation gives a prime. A111473

Divisors of 10¹⁵ - 1. A111117

a(n) = n² + a(n-1), with a(1)=0. A168559

Number of 8-digit numbers whose sum of digits is n. A278971