Properties of the Number 11115

Eleven Thousand One Hundred Fifteen

Basics

Value: 11114 → 11115 → 11116

Parity: odd

Prime: No

Previous Prime: 11113

Next Prime: 11117

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 13 × 19

Divisors: 1, 3, 5, 9, 13, 15, 19, 39, 45, 57

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101101101011

Octal: 25553

Duodecimal: 6523

Hexadecimal: 2b6b

Square: 123543225

Square Root: 105.42770034483347

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

Numbers k such that the decimal expansions of both k and k² have 1 as smallest digit and 5 as largest digit. A256889

Numbers using only digits 1 and 5. A276037

Numbers divisible by the sum and product of their digits. A38186

Triangle read by rows: T(n,k) (n>=0, 0<=k<=A002620(n-1)) is the number of permutations of [n] with k nestings. A263776

a(n) = n*(11·n - 1)/2. A22268

Numbers n for which nontrivial positive magic squares of exactly 10 different orders with magic sum n exist. For a definition of nontrivial positive magic squares, see A125005. A125017

Numbers whose product of digits is prime. A28842

Lexicographically earliest increasing sequence which lists the positions of the zero digits in the sequence. A167519

Positive numbers n such that n is a multiple of (product of digits of n) * (sum of digits of n). A49102

-9-Knödel numbers. A225513