Properties of the Number 12427

Twelve Thousand Four Hundred Twenty-Seven

Basics

Value: 12426 → 12427 → 12428

Parity: odd

Prime: No

Previous Prime: 12421

Next Prime: 12433

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 ² × 43

Divisors: 1, 17, 43, 289, 731, 12427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010001011

Octal: 30213

Duodecimal: 7237

Hexadecimal: 308b

Square: 154430329

Square Root: 111.476454913134

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 whose prime indices have more than one permutation with all equal run-sums. A383015

Positive numbers whose product of digits is 7 times their sum. A62384

a(n) = (prime(1+n)*prime(n)) + prime(n) + 1. A286624

Numbers n such that n and n+2 are of the form p²*q where p and q are distinct primes. A74173

Number of ways to partition 1 into reduced fractions i/j with j <= n. A119983

Numbers of the form 12n+7 for which ∑_i=0..(4n+2) J(i,12n+7) = 0, where J(i,m) is the Jacobi symbol. A165463

3-comma numbers: n occurs in the sequence S[k+1]=S[k]+10·last_digit(S[k-1])+first_digit(S[k]) for three different splittings n=concat(S[0],S[1]). A166513

Number of unlabeled P-series with n elements. A349276

Expansion of (1-4·x)/((1-5·x)*(1-6·x)). A85352

Numbers k such that k and k+2 both have exactly 6 divisors. A356743