Properties of the Number 22502

Twenty-Two Thousand Five Hundred Two

Basics

Value: 22501 → 22502 → 22503

Parity: even

Prime: No

Previous Prime: 22501

Next Prime: 22511

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 11251

Divisors: 1, 2, 11251, 22502

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101011111100110

Octal: 53746

Duodecimal: 11032

Hexadecimal: 57e6

Square: 506340004

Square Root: 150.0066665185251

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

Smallest even k such that the pair {k-3,k-1} is not a twin prime pair and lpf(k-1) > lpf(k-3) >= prime(n), where lpf = least prime factor (A020639). A242720

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (Fibonacci numbers). A24318

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (F(2), F(3), ...). A24322

Fibonacci sequence beginning 5, 11. A22136

Numbers n such that there is no triangular n-gonal number greater than 1. A188892

Expansion of ∏_k>=1 (1+x^k)^A001055(k). A66806

Numbers n such that Q(sqrt(n)) has class number 9. A218041

If a Fibonacci sequence is formed with first term = number of digits in n and second term = sum of decimal digits in n, then n itself occurs as a term in the sequence after the first two terms. A38868

a(0) = 1, a(n) = 25·n² + 2 for n > 0. A10015

Number of right triangles on an (n+1) X 5 grid. A189809