Properties of the Number 23205

Twenty-Three Thousand Two Hundred Five

Basics

Value: 23204 → 23205 → 23206

Parity: odd

Prime: No

Previous Prime: 23203

Next Prime: 23209

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 7 × 13 × 17

Divisors: 1, 3, 5, 7, 13, 15, 17, 21, 35, 39

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101101010100101

Octal: 55245

Duodecimal: 11519

Hexadecimal: 5aa5

Square: 538472025

Square Root: 152.33187453714342

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

Odd primitive abundant numbers. A6038

Denominators of cosecant numbers: -2*(2^2·n-1-1)*Bernoulli(2·n). A1897

Odd infinitary abundant numbers. A127666

Odd unitary abundant numbers. A129485

a(n) = ∏_{p-1 divides n} p, where p is an odd prime. A141459

Palindromic numbers in bases 4 and 9 written in base 10. A259387

Odd bi-unitary abundant numbers: odd numbers k such that bsigma(k) > 2·k, where bsigma is the sum of the bi-unitary divisors function (A188999). A293186

Odd squarefree abundant numbers. A112643

a(n) = A019565(A005187(n)). A283475

Primitive, odd, squarefree abundant numbers. A249263