Properties of the Number 79827

Seventy-Nine Thousand Eight Hundred Twenty-Seven

Basics

Value: 79826 → 79827 → 79828

Parity: odd

Prime: No

Previous Prime: 79823

Next Prime: 79829

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 41 × 59

Divisors: 1, 3, 11, 33, 41, 59, 123, 177, 451, 649

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011011111010011

Octal: 233723

Duodecimal: 3A243

Hexadecimal: 137d3

Square: 6372349929

Square Root: 282.53672327681585

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

Numbers k such that σ(k) = σ(k+7). A15867

Number of unimodal compositions of n+2 where the maximal part appears exactly twice. A114921

Numbers k such that σ(k) = σ(k-1). A231546

Numbers k such that τ(k) = 2*τ(k-1) and σ(k) = σ(k-1), where τ(k) and σ(k) are respectively the number and sum functions of the divisors of k. A347603

Numbers k such that φ(σ(k)+k) = σ(k). A68366

Numbers k that divide σ(k) - σ(k-1). A227307

a(n) = a(n-1) + 3·a(n-2) -2·a(n-3) - 2·a(n-4), where a(0) = 0, a(1) = -1, a(2) = 0, a(3) = 1. A295735

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 0, 1), (1, 0, 1), (1, 1, 0)}. A151115

a(n) = floor((n + reverse(n))/2). A79827