Properties of the Number 23403

Twenty-Three Thousand Four Hundred Three

Basics

Value: 23402 → 23403 → 23404

Parity: odd

Prime: No

Previous Prime: 23399

Next Prime: 23417

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 29 × 269

Divisors: 1, 3, 29, 87, 269, 807, 7801, 23403

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101101101011

Octal: 55553

Duodecimal: 11663

Hexadecimal: 5b6b

Square: 547700409

Square Root: 152.9803909002719

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

Numbers k such that 7·8^k - 1 is prime. A268061

Cubes written in base 5. A4635

Numbers n such that σ(n) and σ(σ(n)) are both perfect squares. A134263

Numbers k such that 381·2^k+1 is prime. A323033

Irregular triangular array T; row n shows the coefficients of the (n-1)-st polynomial in the obverse convolution s(x)**t(x), where s(x) = 2ⁿ x and t(x) = x+1. See Comments. A375044

Numbers having four 5's in base 8. A43444

If any power of 2 ends with k 4's and 5's, they must be the first k terms of this sequence in reverse order. A23403