Properties of the Number 23990

Twenty-Three Thousand Nine Hundred Ninety

Basics

Value: 23989 → 23990 → 23991

Parity: even

Prime: No

Previous Prime: 23981

Next Prime: 23993

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 2399

Divisors: 1, 2, 5, 10, 2399, 4798, 11995, 23990

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110110110110

Octal: 56666

Duodecimal: 11A72

Hexadecimal: 5db6

Square: 575520100

Square Root: 154.88705562441297

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

Number of integer partitions of n such that the dual of the multiset partition obtained by factoring each part into prime numbers is a (strict) antichain, also called T₁ integer partitions. A326977

Expansion of f(-q)¹⁰ / f(-q⁵)² in power of q where f() is a Ramanujan θ function. A243939

Partial sums of the second power of arithmetic derivative function A003415. A231864

Numbers having four 6's in base 8. A43448

Triangle T(n,k) read by rows; related to number of preorders. A79507

Sum of exponents of primes in multinomial coefficient M(4n; 2n,n,n) - sum of exponents of primes in M(3n; n,n,n). A23990

Number of (7+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A253501