Properties of the Number 71997

Seventy-One Thousand Nine Hundred Ninety-Seven

Basics

Value: 71996 → 71997 → 71998

Parity: odd

Prime: No

Previous Prime: 71993

Next Prime: 71999

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 103 × 233

Divisors: 1, 3, 103, 233, 309, 699, 23999, 71997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100100111101

Octal: 214475

Duodecimal: 357B9

Hexadecimal: 1193d

Square: 5183568009

Square Root: 268.32256707179886

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

Expansion of ∑_i>=1 i·xⁱ/(1 - x) * ∏_j=1..i 1/(1 - x^j). A284870

Coefficient of·in the reduction by x² -> x+1 of the polynomial p(n,x) defined at Comments. A192957

a(n) is the smallest positive integer that cannot be obtained by using the number 2 at most n times and the operators +, -, *, /. A71997