Properties of the Number 16523

Sixteen Thousand Five Hundred Twenty-Three

Basics

Value: 16522 → 16523 → 16524

Parity: odd

Prime: No

Previous Prime: 16519

Next Prime: 16529

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 13 × 31 × 41

Divisors: 1, 13, 31, 41, 403, 533, 1271, 16523

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010001011

Octal: 40213

Duodecimal: 968B

Hexadecimal: 408b

Square: 273009529

Square Root: 128.5418219880207

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

Sequence of pairs k,g such that k·2ⁿ-1, k·2ⁿ-1+g, k·2ⁿ-1+2·g, and k·2ⁿ+3·g are four consecutive primes in arithmetic progression for the smallest odd k. A230699

Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n). A255410

Sphenic numbers k such that floor(log(k)/log(lpf(k))) = 1+floor(log(k)/log(p)) for all primes p | k such that p > lpf(k), where lpf = A020639(k). A383177

Number of scalene triangles, distinct up to congruence, on an n X n grid (or geoboard). A190313

Numbers n such that n¹⁰²⁴ + (n+1)¹⁰²⁴ is prime. A274234

Integers n > 10583 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10583. A66055

Basis for code in A075926. A75927

Maximally idempotent integers with three or more factors. A306812

Non-semiprime composite numbers e such that there is no 0<a<b<c<d<e for which a! * b! * c! * d! * e! is a perfect square. A392333

Truncated triangular pyramid numbers: a(n) = (n-5)*(n² + 8·n - 66)/6. A51939