Properties of the Number 91987

Ninety-One Thousand Nine Hundred Eighty-Seven

Basics

Value: 91986 → 91987 → 91988

Parity: odd

Prime: No

Previous Prime: 91969

Next Prime: 91997

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 7 × 17 × 773

Divisors: 1, 7, 17, 119, 773, 5411, 13141, 91987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011101010011

Octal: 263523

Duodecimal: 45297

Hexadecimal: 16753

Square: 8461608169

Square Root: 303.2935871395899

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

The first of 33 consecutive positive integers the sum of the squares of which is a square. A269449

a(n) = 2·a(n-1) + a(n-2) + a(n-3) + a(n-4), a(0)=4, a(1)=2, a(2)=6, a(3)=17. A331413

Number of steps required for initial p = 2ⁿ to reach 0 in the recurrence p = π(p). A91987