Properties of the Number 71988

Seventy-One Thousand Nine Hundred Eighty-Eight

Basics

Value: 71987 → 71988 → 71989

Parity: even

Prime: No

Previous Prime: 71987

Next Prime: 71993

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 7 × 857

Divisors: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100100110100

Octal: 214464

Duodecimal: 357B0

Hexadecimal: 11934

Square: 5182272144

Square Root: 268.3057956884271

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 5-cycles in the n-triangular honeycomb queen graph. A289706

Number of 3-turn bishop's tours on an n X n board summed over all starting positions. A188778

Numbers k such that Bernoulli number B_k has denominator 3404310. A295596

Triple Peano sequence: a list of triples (x,y,z) starting at (1,1,1); then x'=x+1, y'=y+x, z'=z+y, for·only ranging over the primes. A71988