Properties of the Number 4879

Four Thousand Eight Hundred Seventy-Nine

Basics

Value: 4878 → 4879 → 4880

Parity: odd

Prime: No

Previous Prime: 4877

Next Prime: 4889

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 17 × 41

Divisors: 1, 7, 17, 41, 119, 287, 697, 4879

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100001111

Octal: 11417

Duodecimal: 29A7

Hexadecimal: 130f

Square: 23804641

Square Root: 69.84983894040128

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

Kaprekar numbers: positive numbers n such that n = q+r and n² = q·10^m+r, for some m >= 1, q >= 0 and 0 <= r < 10^m, with n ≠ 10^a, a >= 1. A6886

Number of ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n. A71778

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x + 41)² = y². A129288

Odd composite integers m such that F(m)² == 1 (mod m), where F(m) is the m-th Fibonacci number. A337231

Sum of digits = 7 times number of digits. A61424

G.f.: exp( ∑_n>=1 (xⁿ/n) / ∏_d∣n (1 - d·x^d)ⁿ ). A205490

Composite integers m such that P(m)² == 1 (mod m), where P(m) is the m-th Pell number A000129(m). Also, odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 6 (mod m), where U(m)=A001109(m) and V(m)=A003499(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=6 and b=1, respectively. A337233

The full list of 5-Kaprekar numbers. A53396

a(n) = ∑_d∣n d·prime(d). A61150

a(1) = 1; a(n) = ∑_k=1..n-1 a(floor((n-1)/k)). A78346