Properties of the Number 23969

Twenty-Three Thousand Nine Hundred Sixty-Nine

Basics

Value: 23968 → 23969 → 23970

Parity: odd

Prime: No

Previous Prime: 23957

Next Prime: 23971

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 11 × 2179

Divisors: 1, 11, 2179, 23969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110110100001

Octal: 56641

Duodecimal: 11A55

Hexadecimal: 5da1

Square: 574512961

Square Root: 154.81924944915602

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

Octahedral numbers: a(n) = n*(2·n² + 1)/3. A5900

a(n) = (2·n - 1)*(8·n² - 8·n + 3)/3. A63496

Reflected (see A074058) pentanacci numbers A074048. A74062

Integers n such that n+2!, n+2!+3!, n+2!+3!+4!, n+2!+3!+4!+5!, n+2!+3!+4!+5!+6!, and n+2!+3!+4!+5!+6!+7! are all prime. A267123

Partial sums of the odd triangular numbers (A014493). A352116

a(n) = smallest integer·such that ∑_{k = 2..x} 1/(k·log(log(k))) > n. A361089

a(n) is the least integer k such that the k-th, (k+1)-th, ..., (k+n-1)-th primes are congruent to 3 mod 8. A363017

G.f. (x + 1)¹⁰/(x¹⁰ + x⁹ - x⁷ - x⁶ - x⁵ - x⁴ - x³ + x + 1). A173243

Semiprimes of the form (2·n³+n)/3. A245232

Numbers k such that A234575(k,s) = s² where s = A007953(k). A358034