Properties of the Number 42560

Forty-Two Thousand Five Hundred Sixty

Basics

Value: 42559 → 42560 → 42561

Parity: even

Prime: No

Previous Prime: 42557

Next Prime: 42569

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁶ × 5 × 7 × 19

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011001000000

Octal: 123100

Duodecimal: 20768

Hexadecimal: a640

Square: 1811353600

Square Root: 206.30075133164203

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

Lesser of amicable pair m < n defined by t(n) = m and t(m) = n where t(n) = ψ(n) - n and ψ(n) = A001615(n) is the Dedekind ψ function. A323329

Sum of the divisors of 3ⁿ+1. A366578

Number of permutations in the symmetric group S_n in which cycle lengths are odd and greater than 1. A130915

Numbers with prime factorization pqrs⁶. A190292

Row 4 in rectangular array A292929. A294067

Difference of two positive 6th powers. A181125

Number of permutations p of [n] without fixed points such that pⁿ = Id. A261431

a(n) = 4ⁿ - n⁶. A24042

Monotonic ordering of nonnegative differences 6ⁱ-2^j, for 40>=i>=0, j>=0. A192117

Monotonic ordering of nonnegative differences 6ⁱ-4^j, for 40>= i>=0, j>=0. A192164