Properties of the Number 18967

Eighteen Thousand Nine Hundred Sixty-Seven

Basics

Value: 18966 → 18967 → 18968

Parity: odd

Prime: No

Previous Prime: 18959

Next Prime: 18973

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 13 × 1459

Divisors: 1, 13, 1459, 18967

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101000010111

Octal: 45027

Duodecimal: AB87

Hexadecimal: 4a17

Square: 359747089

Square Root: 137.72073191789244

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 k!! + 2⁹ is prime. A76196

Odd semiprimes k = p·q such that k = A325820(p,q), with p, q primes > 3, and A325820 is the carryless base-3 multiplication. A391331

Numbers k such that σ(φ(σ(k))) = σ(k). A66471

a(n) is the number of digits in the decimal representation of the smallest power of n that contains nine consecutive identical digits. A217184

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFT = AlPO4-52 starting with a T1 atom. A18967