Properties of the Number 71127

Seventy-One Thousand One Hundred Twenty-Seven

Basics

Value: 71126 → 71127 → 71128

Parity: odd

Prime: No

Previous Prime: 71119

Next Prime: 71129

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 1129

Divisors: 1, 3, 7, 9, 21, 63, 1129, 3387, 7903, 10161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010111010111

Octal: 212727

Duodecimal: 351B3

Hexadecimal: 115d7

Square: 5059050129

Square Root: 266.6964566693753

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

Triangle T(n,k), read by rows, given by (0, 1, 2, 2, 4, 3, 6, 4, 8, 5, 10, ...) δ (1, 0, 1, 0, 1, 0, 1, 0, ...) where δ is the operator defined in A084938. A184962

Number of (n+1)X(3+1) arrays of permutations of 0..n·4+3 with each element having directed index change -1,1 0,-1 0,1 or 1,0. A264501

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change -1,1 0,-1 0,1 or 1,0. A264506

Number of times there is a prime p < n such that 2n+p is prime. A71127