Properties of the Number 18432

Eighteen Thousand Four Hundred Thirty-Two

Basics

Value: 18431 → 18432 → 18433

Parity: even

Prime: No

Previous Prime: 18427

Next Prime: 18433

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ¹¹ × 3 ²

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100100000000000

Octal: 44000

Duodecimal: A800

Hexadecimal: 4800

Square: 339738624

Square Root: 135.7645019878171

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

a(n) = 9·2ⁿ. A5010

Product of totient function: a(n) = ∏_k=1..n φ(k) (cf. A000010). A1088

Products of superprimorials (A006939). A181818

Numbers that are the sum of 9 positive 11th powers. A4820

13-almost primes (generalization of semiprimes). A69274

a(n) is the smallest number of divisors of pⁿ - 1 that may possibly occur for arbitrarily large primes p. A309906

Let b(n) equal the product of the exponents in the prime factorization of n. Then a(n) gives the least k such that b(k) = n. A85629

Powerful numbers that are the least integer of their prime signature. A181800

a(n) = ∏_k=1..n d(k); d(k) = A000005(k) is the number of positive divisors of k. A66843

Numbers of the form 3·2^k or 9·2^k. A354785