Properties of the Number 42526

Forty-Two Thousand Five Hundred Twenty-Six

Basics

Value: 42525 → 42526 → 42527

Parity: even

Prime: No

Previous Prime: 42509

Next Prime: 42533

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 11 × 1933

Divisors: 1, 2, 11, 22, 1933, 3866, 21263, 42526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011000011110

Octal: 123036

Duodecimal: 2073A

Hexadecimal: a61e

Square: 1808460676

Square Root: 206.2183309019836

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) = ChebyshevT(3, n). A144129

a(n)=a(n-1)+a(m), where m=2n-2-2^p+1 and 2^p<n-1<=2^p+1, for n >= 4. A50063

a(n) = ∑_{k=0..floor(n/5)} Stirling2(n,5·k). A365528

a(n) = (n+3)²*n/2 + 1. A154560

T(n,k) = (1/k!) * ∑_i=0..k (-1)^k-i * C(k,i) * A185651(n,i); triangle T(n,k), n >= 0, 0 <= k <= n, read by rows. A258170

Positions of record high water marks in A246024. A246026

Numerators of continued fraction convergents to sqrt(483). A41922

a(n) = 1 + n + binomial(n+3,5). A154322

a(n) = n³ - a(n-2) for n >= 2 and a(0)=0, a(1)=1. A215097

Number of (6+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250660