Properties of the Number 87740

Eighty-Seven Thousand Seven Hundred Forty

Basics

Value: 87739 → 87740 → 87741

Parity: even

Prime: No

Previous Prime: 87739

Next Prime: 87743

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 41 × 107

Divisors: 1, 2, 4, 5, 10, 20, 41, 82, 107, 164

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101011010111100

Octal: 253274

Duodecimal: 42938

Hexadecimal: 156bc

Square: 7698307600

Square Root: 296.2093854016108

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

a(n) = n*(n+1)*(8·n + 1)/6. A132124

Conjectured largest number that is not the sum of three generalized n-gonal numbers, or -1 if there is no largest number. A118282

Conjectured largest number that is not the sum of three generalized (2n+1)-gonal numbers; bisection of A118282. A118284

a(n) = 1 + abs(A004001(A005185(n)) - A005185(A004001(n))). A87740

Number of binary strings with n zeros and n ones avoiding the substrings 10101101 and 1110101. A275046

Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A304948