Properties of the Number 71115

Seventy-One Thousand One Hundred Fifteen

Basics

Value: 71114 → 71115 → 71116

Parity: odd

Prime: No

Previous Prime: 71089

Next Prime: 71119

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 11 × 431

Divisors: 1, 3, 5, 11, 15, 33, 55, 165, 431, 1293

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010111001011

Octal: 212713

Duodecimal: 351A3

Hexadecimal: 115cb

Square: 5057343225

Square Root: 266.6739582336453

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

T(n,k)=Number of length-n 0..k arrays with no repeated value differing from the previous repeated value by one. A269494

Multiples of 5 in which there is no common digit in successive terms. A83493

a(n) = 74·n² + 1. A158742

Number of length-n 0..4 arrays with no repeated value differing from the previous repeated value by one. A269490

Number of length-7 0..n arrays with no repeated value differing from the previous repeated value by one. A269498

a(n) = 15·binomial(n,6)-6·binomial(n-2,4)+binomial(n-4,4). A274311

a(1) = 1; a(n+1) is the smallest integer > 0 that cannot be obtained from the integers {a(1), ..., a(n)} using each number at most once and the operators +, -, *, /, where intermediate subexpressions must be integers. A71115

Number of 5Xn 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically. A207002