Properties of the Number 87920

Eighty-Seven Thousand Nine Hundred Twenty

Basics

Value: 87919 → 87920 → 87921

Parity: even

Prime: No

Previous Prime: 87917

Next Prime: 87931

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 5 × 7 × 157

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011101110000

Octal: 253560

Duodecimal: 42A68

Hexadecimal: 15770

Square: 7729926400

Square Root: 296.51306885194793

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) = 4·n³ + 4·n. A105374

Number of points in the standard root system version of the D₄ lattice having L_infinity norm n. A117216

Number of colored integer partitions of n such that seven colors are used and parts differ by size or by color. A327385

Number of points of l₁ norm n in the "diamond" lattice D^+_4. A35878

G.f. satisfies: A(x,y) = 1-x + y·x + Series_Reversion( x/A(x,y)² ). A257813

Indices for which there is no twin prime pair between two consecutive prime-indexed primes. A87920